Amazon Interview Questions — CS-Next ByCompany

1988 of 1988

No.	Problem	Difficulty	Frequency
1	Two Sum Sliding Window	Easy	100.0%
3	Longest Substring Without Repeating Characters StringTree	Medium	87.5%
42	Trapping Rain Water	Hard	87.5%
121	Best Time to Buy and Sell Stock	Easy	87.5%
146	LRU Cache	Medium	87.5%
200	Number of Islands GraphMath	Medium	87.5%
2	Add Two Numbers Math	Medium	75.0%
4	Median of Two Sorted Arrays ArrayHeap	Hard	75.0%
5	Longest Palindromic Substring StringTree	Medium	75.0%
9	Palindrome Number StringMath	Easy	75.0%
11	Container With Most Water	Medium	75.0%
14	Longest Common Prefix DP	Easy	75.0%
15	3Sum	Medium	75.0%
20	Valid Parentheses Stack/Queue	Easy	75.0%
22	Generate Parentheses	Medium	75.0%
23	Merge k Sorted Lists	Hard	75.0%
33	Search in Rotated Sorted Array ArrayBinary Search	Medium	75.0%
49	Group Anagrams String	Medium	75.0%
53	Maximum Subarray Array	Medium	75.0%
56	Merge Intervals	Medium	75.0%
88	Merge Sorted Array Array	Easy	75.0%
127	Word Ladder	Hard	75.0%
128	Longest Consecutive Sequence	Medium	75.0%
138	Copy List with Random Pointer	Medium	75.0%
207	Course Schedule	Medium	75.0%
236	Lowest Common Ancestor of a Binary Tree Tree	Medium	75.0%
347	Top K Frequent Elements Heap	Medium	75.0%
560	Subarray Sum Equals K Array	Medium	75.0%
767	Reorganize String String	Medium	75.0%
875	Koko Eating Bananas	Medium	75.0%
994	Rotting Oranges	Medium	75.0%
6	Zigzag Conversion	Medium	62.5%
7	Reverse Integer Math	Medium	62.5%
13	Roman to Integer Math	Easy	62.5%
17	Letter Combinations of a Phone Number Math	Medium	62.5%
18	4Sum	Medium	62.5%
21	Merge Two Sorted Lists	Easy	62.5%
25	Reverse Nodes in k-Group Linked List	Hard	62.5%
26	Remove Duplicates from Sorted Array Array	Easy	62.5%
31	Next Permutation	Medium	62.5%
34	Find First and Last Position of Element in Sorted Array Array	Medium	62.5%
36	Valid Sudoku	Medium	62.5%
41	First Missing Positive	Hard	62.5%
45	Jump Game II	Medium	62.5%
48	Rotate Image	Medium	62.5%
51	N-Queens	Hard	62.5%
54	Spiral Matrix Array	Medium	62.5%
55	Jump Game	Medium	62.5%
62	Unique Paths	Medium	62.5%
69	Sqrt(x) Math	Easy	62.5%
70	Climbing Stairs	Easy	62.5%
74	Search a 2D Matrix Array	Medium	62.5%
75	Sort Colors	Medium	62.5%
76	Minimum Window Substring StringTreeSliding Window	Hard	62.5%
78	Subsets	Medium	62.5%
79	Word Search	Medium	62.5%
84	Largest Rectangle in Histogram	Hard	62.5%
118	Pascal's Triangle	Easy	62.5%
122	Best Time to Buy and Sell Stock II	Medium	62.5%
124	Binary Tree Maximum Path Sum Tree	Hard	62.5%
136	Single Number Math	Easy	62.5%
139	Word Break	Medium	62.5%
155	Min Stack Stack/Queue	Medium	62.5%
162	Find Peak Element Binary Search	Medium	62.5%
169	Majority Element	Easy	62.5%
189	Rotate Array Array	Medium	62.5%
198	House Robber	Medium	62.5%
199	Binary Tree Right Side View Tree	Medium	62.5%
206	Reverse Linked List Linked List	Easy	62.5%
210	Course Schedule II	Medium	62.5%
215	Kth Largest Element in an Array ArrayHeap	Medium	62.5%
217	Contains Duplicate	Easy	62.5%
234	Palindrome Linked List StringLinked List	Easy	62.5%
238	Product of Array Except Self Array	Medium	62.5%
239	Sliding Window Maximum Sliding Window	Hard	62.5%
242	Valid Anagram String	Easy	62.5%
253	Meeting Rooms II	Medium	62.5%
283	Move Zeroes	Easy	62.5%
295	Find Median from Data Stream Heap	Hard	62.5%
297	Serialize and Deserialize Binary Tree Tree	Hard	62.5%
322	Coin Change DP	Medium	62.5%
380	Insert Delete GetRandom O(1)	Medium	62.5%
424	Longest Repeating Character Replacement	Medium	62.5%
460	LFU Cache	Hard	62.5%
540	Single Element in a Sorted Array Array	Medium	62.5%
621	Task Scheduler	Medium	62.5%
735	Asteroid Collision	Medium	62.5%
739	Daily Temperatures	Medium	62.5%
863	All Nodes Distance K in Binary Tree TreeLinked List	Medium	62.5%
904	Fruit Into Baskets	Medium	62.5%
1004	Max Consecutive Ones III	Medium	62.5%
1011	Capacity To Ship Packages Within D Days	Medium	62.5%
1152	Analyze User Website Visit Pattern	Medium	62.5%
1768	Merge Strings Alternately String	Easy	62.5%
1757	Recyclable and Low Fat Products	Easy	62.5%
2667	Create Hello World Function	Easy	62.5%
3371	Identify the Largest Outlier in an Array Array	Medium	62.5%
8	String to Integer (atoi) StringMath	Medium	50.0%
10	Regular Expression Matching	Hard	50.0%
12	Integer to Roman Math	Medium	50.0%
16	3Sum Closest	Medium	50.0%
19	Remove Nth Node From End of List Linked List	Medium	50.0%
27	Remove Element	Easy	50.0%
28	Find the Index of the First Occurrence in a String String	Easy	50.0%
32	Longest Valid Parentheses Stack/Queue	Hard	50.0%
35	Search Insert Position Binary Search	Easy	50.0%
37	Sudoku Solver	Hard	50.0%
39	Combination Sum	Medium	50.0%
46	Permutations	Medium	50.0%
50	Pow(x, n) Math	Medium	50.0%
61	Rotate List	Medium	50.0%
64	Minimum Path Sum	Medium	50.0%
66	Plus One	Easy	50.0%
67	Add Binary	Easy	50.0%
71	Simplify Path	Medium	50.0%
72	Edit Distance DP	Medium	50.0%
73	Set Matrix Zeroes Array	Medium	50.0%
80	Remove Duplicates from Sorted Array II Array	Medium	50.0%
85	Maximal Rectangle	Hard	50.0%
90	Subsets II	Medium	50.0%
92	Reverse Linked List II Linked List	Medium	50.0%
98	Validate Binary Search Tree TreeBinary Search	Medium	50.0%
100	Same Tree Tree	Easy	50.0%
101	Symmetric Tree Tree	Easy	50.0%
102	Binary Tree Level Order Traversal Tree	Medium	50.0%
103	Binary Tree Zigzag Level Order Traversal Tree	Medium	50.0%
104	Maximum Depth of Binary Tree Tree	Easy	50.0%
105	Construct Binary Tree from Preorder and Inorder Traversal Tree	Medium	50.0%
110	Balanced Binary Tree Tree	Easy	50.0%
116	Populating Next Right Pointers in Each Node Linked List	Medium	50.0%
125	Valid Palindrome String	Easy	50.0%
126	Word Ladder II	Hard	50.0%
130	Surrounded Regions	Medium	50.0%
131	Palindrome Partitioning StringDP	Medium	50.0%
134	Gas Station	Medium	50.0%
135	Candy	Hard	50.0%
140	Word Break II	Hard	50.0%
141	Linked List Cycle GraphLinked List	Easy	50.0%
142	Linked List Cycle II GraphLinked List	Medium	50.0%
143	Reorder List	Medium	50.0%
148	Sort List	Medium	50.0%
150	Evaluate Reverse Polish Notation	Medium	50.0%
151	Reverse Words in a String String	Medium	50.0%
152	Maximum Product Subarray Array	Medium	50.0%
153	Find Minimum in Rotated Sorted Array ArrayBinary Search	Medium	50.0%
160	Intersection of Two Linked Lists Linked List	Easy	50.0%
167	Two Sum II - Input Array Is Sorted ArraySliding Window	Medium	50.0%
175	Combine Two Tables	Easy	50.0%
176	Second Highest Salary	Medium	50.0%
179	Largest Number Math	Medium	50.0%
181	Employees Earning More Than Their Managers	Easy	50.0%
202	Happy Number Math	Easy	50.0%
204	Count Primes Math	Medium	50.0%
205	Isomorphic Strings String	Easy	50.0%
209	Minimum Size Subarray Sum Array	Medium	50.0%
212	Word Search II	Hard	50.0%
219	Contains Duplicate II	Easy	50.0%
224	Basic Calculator	Hard	50.0%
227	Basic Calculator II	Medium	50.0%
230	Kth Smallest Element in a BST Tree	Medium	50.0%
235	Lowest Common Ancestor of a Binary Search Tree TreeBinary Search	Medium	50.0%
240	Search a 2D Matrix II Array	Medium	50.0%
268	Missing Number Math	Easy	50.0%
273	Integer to English Words Math	Hard	50.0%
287	Find the Duplicate Number Math	Medium	50.0%
300	Longest Increasing Subsequence String	Medium	50.0%
328	Odd Even Linked List Linked List	Medium	50.0%
344	Reverse String String	Easy	50.0%
349	Intersection of Two Arrays Array	Easy	50.0%
387	First Unique Character in a String String	Easy	50.0%
394	Decode String String	Medium	50.0%
399	Evaluate Division	Medium	50.0%
410	Split Array Largest Sum Array	Hard	50.0%
412	Fizz Buzz	Easy	50.0%
416	Partition Equal Subset Sum DP	Medium	50.0%
417	Pacific Atlantic Water Flow	Medium	50.0%
438	Find All Anagrams in a String String	Medium	50.0%
443	String Compression String	Medium	50.0%
472	Concatenated Words	Hard	50.0%
485	Max Consecutive Ones	Easy	50.0%
494	Target Sum	Medium	50.0%
496	Next Greater Element I	Easy	50.0%
503	Next Greater Element II	Medium	50.0%
543	Diameter of Binary Tree Tree	Easy	50.0%
547	Number of Provinces Math	Medium	50.0%
567	Permutation in String String	Medium	50.0%
658	Find K Closest Elements	Medium	50.0%
662	Maximum Width of Binary Tree Tree	Medium	50.0%
692	Top K Frequent Words Heap	Medium	50.0%
733	Flood Fill Graph	Easy	50.0%
704	Binary Search Binary Search	Easy	50.0%
787	Cheapest Flights Within K Stops Heap	Medium	50.0%
796	Rotate String String	Easy	50.0%
852	Peak Index in a Mountain Array ArrayBinary Search	Medium	50.0%
876	Middle of the Linked List Linked List	Easy	50.0%
528	Random Pick with Weight	Medium	50.0%
901	Online Stock Span	Medium	50.0%
907	Sum of Subarray Minimums Array	Medium	50.0%
509	Fibonacci Number DPMath	Easy	50.0%
973	K Closest Points to Origin	Medium	50.0%
981	Time Based Key-Value Store	Medium	50.0%
987	Vertical Order Traversal of a Binary Tree Tree	Hard	50.0%
992	Subarrays with K Different Integers ArrayMath	Hard	50.0%
1148	Article Views I	Easy	50.0%
1235	Maximum Profit in Job Scheduling	Hard	50.0%
1268	Search Suggestions System	Medium	50.0%
1492	The kth Factor of n	Medium	50.0%
1650	Lowest Common Ancestor of a Binary Tree III Tree	Medium	50.0%
1752	Check if Array Is Sorted and Rotated ArrayBinary Search	Easy	50.0%
1929	Concatenation of Array Array	Easy	50.0%
2055	Plates Between Candles	Medium	50.0%
2149	Rearrange Array Elements by Sign Array	Medium	50.0%
2214	Minimum Health to Beat Game	Medium	50.0%
2357	Make Array Zero by Subtracting Equal Amounts Array	Easy	50.0%
3434	Maximum Frequency After Subarray Operation Array	Medium	50.0%
3733	Minimum Time to Complete All Deliveries	Medium	50.0%
24	Swap Nodes in Pairs Linked List	Medium	37.5%
29	Divide Two Integers Math	Medium	37.5%
30	Substring with Concatenation of All Words StringTree	Hard	37.5%
38	Count and Say	Medium	37.5%
40	Combination Sum II	Medium	37.5%
44	Wildcard Matching	Hard	37.5%
47	Permutations II	Medium	37.5%
57	Insert Interval	Medium	37.5%
58	Length of Last Word	Easy	37.5%
59	Spiral Matrix II Array	Medium	37.5%
60	Permutation Sequence	Hard	37.5%
63	Unique Paths II	Medium	37.5%
68	Text Justification	Hard	37.5%
81	Search in Rotated Sorted Array II ArrayBinary Search	Medium	37.5%
83	Remove Duplicates from Sorted List	Easy	37.5%
86	Partition List DP	Medium	37.5%
89	Gray Code	Medium	37.5%
91	Decode Ways	Medium	37.5%
94	Binary Tree Inorder Traversal Tree	Easy	37.5%
96	Unique Binary Search Trees TreeBinary Search	Medium	37.5%
97	Interleaving String String	Medium	37.5%
99	Recover Binary Search Tree TreeBinary Search	Medium	37.5%
108	Convert Sorted Array to Binary Search Tree ArrayTreeBinary Search	Easy	37.5%
112	Path Sum	Easy	37.5%
114	Flatten Binary Tree to Linked List TreeLinked List	Medium	37.5%
115	Distinct Subsequences String	Hard	37.5%
120	Triangle	Medium	37.5%
133	Clone Graph Graph	Medium	37.5%
137	Single Number II Math	Medium	37.5%
165	Compare Version Numbers Math	Medium	37.5%
168	Excel Sheet Column Title	Easy	37.5%
173	Binary Search Tree Iterator TreeBinary Search	Medium	37.5%
174	Dungeon Game	Hard	37.5%
177	Nth Highest Salary	Medium	37.5%
178	Rank Scores	Medium	37.5%
180	Consecutive Numbers Math	Medium	37.5%
185	Department Top Three Salaries	Hard	37.5%
190	Reverse Bits	Easy	37.5%
197	Rising Temperature	Easy	37.5%
203	Remove Linked List Elements Linked List	Easy	37.5%
208	Implement Trie (Prefix Tree) Tree	Medium	37.5%
211	Design Add and Search Words Data Structure	Medium	37.5%
213	House Robber II	Medium	37.5%
221	Maximal Square	Medium	37.5%
225	Implement Stack using Queues Stack/Queue	Easy	37.5%
226	Invert Binary Tree Tree	Easy	37.5%
228	Summary Ranges	Easy	37.5%
229	Majority Element II	Medium	37.5%
231	Power of Two Math	Easy	37.5%
232	Implement Queue using Stacks Stack/Queue	Easy	37.5%
237	Delete Node in a Linked List Linked List	Medium	37.5%
241	Different Ways to Add Parentheses	Medium	37.5%
258	Add Digits Math	Easy	37.5%
269	Alien Dictionary	Hard	37.5%
274	H-Index	Medium	37.5%
278	First Bad Version	Easy	37.5%
303	Range Sum Query - Immutable	Easy	37.5%
312	Burst Balloons	Hard	37.5%
316	Remove Duplicate Letters	Medium	37.5%
323	Number of Connected Components in an Undirected Graph GraphMath	Medium	37.5%
332	Reconstruct Itinerary	Hard	37.5%
334	Increasing Triplet Subsequence String	Medium	37.5%
337	House Robber III	Medium	37.5%
345	Reverse Vowels of a String String	Easy	37.5%
348	Design Tic-Tac-Toe	Medium	37.5%
354	Russian Doll Envelopes	Hard	37.5%
355	Design Twitter	Medium	37.5%
371	Sum of Two Integers Math	Medium	37.5%
373	Find K Pairs with Smallest Sums	Medium	37.5%
378	Kth Smallest Element in a Sorted Matrix Array	Medium	37.5%
383	Ransom Note	Easy	37.5%
392	Is Subsequence String	Easy	37.5%
395	Longest Substring with At Least K Repeating Characters StringTree	Medium	37.5%
396	Rotate Function	Medium	37.5%
402	Remove K Digits Math	Medium	37.5%
403	Frog Jump	Hard	37.5%
407	Trapping Rain Water II	Hard	37.5%
414	Third Maximum Number Math	Easy	37.5%
415	Add Strings String	Easy	37.5%
435	Non-overlapping Intervals	Medium	37.5%
437	Path Sum III	Medium	37.5%
448	Find All Numbers Disappeared in an Array ArrayMath	Easy	37.5%
450	Delete Node in a BST TreeLinked List	Medium	37.5%
451	Sort Characters By Frequency	Medium	37.5%
455	Assign Cookies	Easy	37.5%
456	132 Pattern	Medium	37.5%
459	Repeated Substring Pattern StringTree	Easy	37.5%
486	Predict the Winner	Medium	37.5%
493	Reverse Pairs	Hard	37.5%
498	Diagonal Traverse	Medium	37.5%
516	Longest Palindromic Subsequence String	Medium	37.5%
518	Coin Change II DP	Medium	37.5%
525	Contiguous Array Array	Medium	37.5%
1721	Swapping Nodes in a Linked List Linked List	Medium	37.5%
542	01 Matrix Array	Medium	37.5%
545	Boundary of Binary Tree Tree	Medium	37.5%
556	Next Greater Element III	Medium	37.5%
570	Managers with at Least 5 Direct Reports	Medium	37.5%
577	Employee Bonus	Easy	37.5%
584	Find Customer Referee	Easy	37.5%
588	Design In-Memory File System	Hard	37.5%
595	Big Countries Tree	Easy	37.5%
605	Can Place Flowers	Easy	37.5%
617	Merge Two Binary Trees Tree	Easy	37.5%
632	Smallest Range Covering Elements from K Lists	Hard	37.5%
636	Exclusive Time of Functions	Medium	37.5%
643	Maximum Average Subarray I Array	Easy	37.5%
645	Set Mismatch	Easy	37.5%
647	Palindromic Substrings StringTree	Medium	37.5%
653	Two Sum IV - Input is a BST TreeSliding Window	Easy	37.5%
661	Image Smoother	Easy	37.5%
678	Valid Parenthesis String String	Medium	37.5%
680	Valid Palindrome II String	Easy	37.5%
682	Baseball Game	Easy	37.5%
694	Number of Distinct Islands GraphMath	Medium	37.5%
695	Max Area of Island Graph	Medium	37.5%
696	Count Binary Substrings StringTree	Easy	37.5%
713	Subarray Product Less Than K Array	Medium	37.5%
721	Accounts Merge	Medium	37.5%
724	Find Pivot Index	Easy	37.5%
725	Split Linked List in Parts Linked List	Medium	37.5%
746	Min Cost Climbing Stairs	Easy	37.5%
752	Open the Lock	Medium	37.5%
430	Flatten a Multilevel Doubly Linked List Linked List	Medium	37.5%
763	Partition Labels DP	Medium	37.5%
771	Jewels and Stones	Easy	37.5%
703	Kth Largest Element in a Stream Heap	Easy	37.5%
785	Is Graph Bipartite? Graph	Medium	37.5%
790	Domino and Tromino Tiling	Medium	37.5%
791	Custom Sort String String	Medium	37.5%
706	Design HashMap	Easy	37.5%
802	Find Eventual Safe States	Medium	37.5%
815	Bus Routes	Hard	37.5%
827	Making A Large Island Graph	Hard	37.5%
622	Design Circular Queue Stack/Queue	Medium	37.5%
871	Minimum Number of Refueling Stops Math	Hard	37.5%
881	Boats to Save People	Medium	37.5%
909	Snakes and Ladders	Medium	37.5%
912	Sort an Array Array	Medium	37.5%
921	Minimum Add to Make Parentheses Valid	Medium	37.5%
930	Binary Subarrays With Sum Array	Medium	37.5%
931	Minimum Falling Path Sum	Medium	37.5%
937	Reorder Data in Log Files	Medium	37.5%
962	Maximum Width Ramp	Medium	37.5%
968	Binary Tree Cameras Tree	Hard	37.5%
977	Squares of a Sorted Array Array	Easy	37.5%
1008	Construct Binary Search Tree from Preorder Traversal TreeBinary Search	Medium	37.5%
1021	Remove Outermost Parentheses	Easy	37.5%
1038	Binary Search Tree to Greater Sum Tree TreeBinary Search	Medium	37.5%
1047	Remove All Adjacent Duplicates In String String	Easy	37.5%
1045	Customers Who Bought All Products	Medium	37.5%
1071	Greatest Common Divisor of Strings String	Easy	37.5%
1068	Product Sales Analysis I	Easy	37.5%
1070	Product Sales Analysis III	Medium	37.5%
1081	Smallest Subsequence of Distinct Characters String	Medium	37.5%
1091	Shortest Path in Binary Matrix Array	Medium	37.5%
1128	Number of Equivalent Domino Pairs Math	Easy	37.5%
1299	Replace Elements with Greatest Element on Right Side	Easy	37.5%
1143	Longest Common Subsequence StringDP	Medium	37.5%
1382	Balance a Binary Search Tree TreeBinary Search	Medium	37.5%
1174	Immediate Food Delivery II	Medium	37.5%
1192	Critical Connections in a Network Graph	Hard	37.5%
1193	Monthly Transactions I	Medium	37.5%
1207	Unique Number of Occurrences Math	Easy	37.5%
1209	Remove All Adjacent Duplicates in String II String	Medium	37.5%
1429	First Unique Number Math	Medium	37.5%
1251	Average Selling Price	Easy	37.5%
1283	Find the Smallest Divisor Given a Threshold	Medium	37.5%
1280	Students and Examinations	Easy	37.5%
1344	Angle Between Hands of a Clock	Medium	37.5%
1373	Maximum Sum BST in Binary Tree Tree	Hard	37.5%
1351	Count Negative Numbers in a Sorted Matrix ArrayMath	Easy	37.5%
1353	Maximum Number of Events That Can Be Attended Math	Medium	37.5%
1378	Replace Employee ID With The Unique Identifier	Easy	37.5%
1431	Kids With the Greatest Number of Candies Math	Easy	37.5%
1423	Maximum Points You Can Obtain from Cards	Medium	37.5%
1438	Longest Continuous Subarray With Absolute Diff Less Than or Equal to Limit Array	Medium	37.5%
1456	Maximum Number of Vowels in a Substring of Given Length StringTreeMath	Medium	37.5%
1480	Running Sum of 1d Array Array	Easy	37.5%
1482	Minimum Number of Days to Make m Bouquets Math	Medium	37.5%
1496	Path Crossing	Easy	37.5%
1539	Kth Missing Positive Number Math	Easy	37.5%
1552	Magnetic Force Between Two Balls	Medium	37.5%
1590	Make Sum Divisible by P	Medium	37.5%
1603	Design Parking System	Easy	37.5%
1581	Customer Who Visited but Did Not Make Any Transactions	Easy	37.5%
1642	Furthest Building You Can Reach	Medium	37.5%
1661	Average Time of Process per Machine	Easy	37.5%
1710	Maximum Units on a Truck	Easy	37.5%
1781	Sum of Beauty of All Substrings StringTree	Medium	37.5%
1792	Maximum Average Pass Ratio	Medium	37.5%
1838	Frequency of the Most Frequent Element	Medium	37.5%
1863	Sum of All Subset XOR Totals	Easy	37.5%
1922	Count Good Numbers Math	Medium	37.5%
1934	Confirmation Rate	Medium	37.5%
2104	Sum of Subarray Ranges Array	Medium	37.5%
2161	Partition Array According to Given Pivot ArrayDP	Medium	37.5%
2221	Find Triangular Sum of an Array Array	Medium	37.5%
2250	Count Number of Rectangles Containing Each Point Math	Medium	37.5%
2272	Substring With Largest Variance StringTree	Hard	37.5%
2281	Sum of Total Strength of Wizards	Hard	37.5%
2288	Apply Discount to Prices	Medium	37.5%
2235	Add Two Integers Math	Easy	37.5%
2347	Best Poker Hand	Easy	37.5%
2385	Amount of Time for Binary Tree to Be Infected Tree	Medium	37.5%
2390	Removing Stars From a String String	Medium	37.5%
2342	Max Sum of a Pair With Equal Sum of Digits Math	Medium	37.5%
2355	Maximum Number of Books You Can Take Math	Hard	37.5%
2434	Using a Robot to Print the Lexicographically Smallest String StringGraph	Medium	37.5%
2461	Maximum Sum of Distinct Subarrays With Length K Array	Medium	37.5%
2583	Kth Largest Sum in a Binary Tree TreeHeap	Medium	37.5%
2551	Put Marbles in Bags	Hard	37.5%
2825	Make String a Subsequence Using Cyclic Increments String	Medium	37.5%
2877	Create a DataFrame from List	Easy	37.5%
2929	Distribute Candies Among Children II	Medium	37.5%
2965	Find Missing and Repeated Values	Easy	37.5%
2979	Most Expensive Item That Can Not Be Bought	Medium	37.5%
3104	Find Longest Self-Contained Substring StringTree	Hard	37.5%
3317	Find the Number of Possible Ways for an Event Math	Hard	37.5%
1277	Count Square Submatrices with All Ones	Medium	37.5%
2163	Minimum Difference in Sums After Removal of Elements	Hard	37.5%
3413	Maximum Coins From K Consecutive Bags	Medium	37.5%
2790	Maximum Number of Groups With Increasing Length Math	Hard	37.5%
3459	Length of Longest V-Shaped Diagonal Segment	Hard	37.5%
3610	Minimum Number of Primes to Sum to Target Math	Medium	37.5%
3612	Process String with Special Operations I String	Medium	37.5%
3644	Maximum K to Sort a Permutation	Medium	37.5%
3676	Count Bowl Subarrays Array	Medium	37.5%
1648	Sell Diminishing-Valued Colored Balls	Medium	37.5%
3752	Lexicographically Smallest Negated Permutation that Sums to Target Graph	Medium	37.5%
3872	Longest Arithmetic Sequence After Changing At Most One Element	Medium	37.5%
3914	Minimum Operations to Make Array Non Decreasing Array	Medium	37.5%
43	Multiply Strings String	Medium	25.0%
52	N-Queens II	Hard	25.0%
65	Valid Number Math	Hard	25.0%
77	Combinations	Medium	25.0%
82	Remove Duplicates from Sorted List II	Medium	25.0%
87	Scramble String String	Hard	25.0%
93	Restore IP Addresses	Medium	25.0%
95	Unique Binary Search Trees II TreeBinary Search	Medium	25.0%
106	Construct Binary Tree from Inorder and Postorder Traversal Tree	Medium	25.0%
109	Convert Sorted List to Binary Search Tree TreeBinary Search	Medium	25.0%
111	Minimum Depth of Binary Tree Tree	Easy	25.0%
113	Path Sum II	Medium	25.0%
119	Pascal's Triangle II	Easy	25.0%
123	Best Time to Buy and Sell Stock III	Hard	25.0%
129	Sum Root to Leaf Numbers Math	Medium	25.0%
132	Palindrome Partitioning II StringDP	Hard	25.0%
144	Binary Tree Preorder Traversal Tree	Easy	25.0%
145	Binary Tree Postorder Traversal Tree	Easy	25.0%
149	Max Points on a Line	Hard	25.0%
171	Excel Sheet Column Number Math	Easy	25.0%
172	Factorial Trailing Zeroes	Medium	25.0%
182	Duplicate Emails	Easy	25.0%
183	Customers Who Never Order	Easy	25.0%
184	Department Highest Salary	Medium	25.0%
186	Reverse Words in a String II String	Medium	25.0%
187	Repeated DNA Sequences	Medium	25.0%
188	Best Time to Buy and Sell Stock IV	Hard	25.0%
191	Number of 1 Bits Math	Easy	25.0%
196	Delete Duplicate Emails	Easy	25.0%
214	Shortest Palindrome String	Hard	25.0%
216	Combination Sum III	Medium	25.0%
218	The Skyline Problem	Hard	25.0%
233	Number of Digit One Math	Hard	25.0%
252	Meeting Rooms	Easy	25.0%
257	Binary Tree Paths Tree	Easy	25.0%
260	Single Number III Math	Medium	25.0%
262	Trips and Users	Hard	25.0%
263	Ugly Number Math	Easy	25.0%
264	Ugly Number II Math	Medium	25.0%
271	Encode and Decode Strings String	Medium	25.0%
277	Find the Celebrity	Medium	25.0%
279	Perfect Squares	Medium	25.0%
286	Walls and Gates	Medium	25.0%
289	Game of Life	Medium	25.0%
290	Word Pattern	Easy	25.0%
299	Bulls and Cows	Medium	25.0%
304	Range Sum Query 2D - Immutable	Medium	25.0%
310	Minimum Height Trees Tree	Medium	25.0%
314	Binary Tree Vertical Order Traversal Tree	Medium	25.0%
315	Count of Smaller Numbers After Self Math	Hard	25.0%
319	Bulb Switcher	Medium	25.0%
326	Power of Three Math	Easy	25.0%
329	Longest Increasing Path in a Matrix Array	Hard	25.0%
338	Counting Bits	Easy	25.0%
339	Nested List Weight Sum	Medium	25.0%
341	Flatten Nested List Iterator	Medium	25.0%
342	Power of Four Math	Easy	25.0%
346	Moving Average from Data Stream	Easy	25.0%
350	Intersection of Two Arrays II Array	Easy	25.0%
359	Logger Rate Limiter	Easy	25.0%
362	Design Hit Counter	Medium	25.0%
367	Valid Perfect Square	Easy	25.0%
368	Largest Divisible Subset	Medium	25.0%
381	Insert Delete GetRandom O(1) - Duplicates allowed	Hard	25.0%
386	Lexicographical Numbers GraphMath	Medium	25.0%
389	Find the Difference	Easy	25.0%
390	Elimination Game	Medium	25.0%
408	Valid Word Abbreviation	Easy	25.0%
409	Longest Palindrome String	Easy	25.0%
419	Battleships in a Board	Medium	25.0%
432	All O`one Data Structure	Hard	25.0%
433	Minimum Genetic Mutation	Medium	25.0%
441	Arranging Coins	Easy	25.0%
442	Find All Duplicates in an Array Array	Medium	25.0%
445	Add Two Numbers II Math	Medium	25.0%
449	Serialize and Deserialize BST Tree	Medium	25.0%
452	Minimum Number of Arrows to Burst Balloons Math	Medium	25.0%
463	Island Perimeter Graph	Easy	25.0%
475	Heaters	Medium	25.0%
502	IPO	Hard	25.0%
504	Base 7	Easy	25.0%
508	Most Frequent Subtree Sum Tree	Medium	25.0%
2036	Maximum Alternating Subarray Sum Array	Medium	25.0%
517	Super Washing Machines	Hard	25.0%
523	Continuous Subarray Sum Array	Medium	25.0%
529	Minesweeper	Medium	25.0%
532	K-diff Pairs in an Array Array	Medium	25.0%
535	Encode and Decode TinyURL	Medium	25.0%
536	Construct Binary Tree from String StringTree	Medium	25.0%
537	Complex Number Multiplication Math	Medium	25.0%
538	Convert BST to Greater Tree Tree	Medium	25.0%
541	Reverse String II String	Easy	25.0%
553	Optimal Division	Medium	25.0%
557	Reverse Words in a String III String	Easy	25.0%
561	Array Partition ArrayDP	Easy	25.0%
572	Subtree of Another Tree Tree	Easy	25.0%
579	Find Cumulative Salary of an Employee	Hard	25.0%
594	Longest Harmonious Subsequence String	Easy	25.0%
606	Construct String from Binary Tree StringTree	Medium	25.0%
610	Triangle Judgement	Easy	25.0%
611	Valid Triangle Number Math	Medium	25.0%
626	Exchange Seats	Medium	25.0%
628	Maximum Product of Three Numbers Math	Easy	25.0%
630	Course Schedule III	Hard	25.0%
633	Sum of Square Numbers Math	Medium	25.0%
640	Solve the Equation	Medium	25.0%
642	Design Search Autocomplete System	Hard	25.0%
646	Maximum Length of Pair Chain	Medium	25.0%
650	2 Keys Keyboard	Medium	25.0%
652	Find Duplicate Subtrees Tree	Medium	25.0%
663	Equal Tree Partition DPTree	Medium	25.0%
670	Maximum Swap	Medium	25.0%
675	Cut Off Trees for Golf Event Tree	Hard	25.0%
684	Redundant Connection	Medium	25.0%
698	Partition to K Equal Sum Subsets DP	Medium	25.0%
711	Number of Distinct Islands II GraphMath	Hard	25.0%
716	Max Stack Stack/Queue	Hard	25.0%
719	Find K-th Smallest Pair Distance	Hard	25.0%
729	My Calendar I	Medium	25.0%
738	Monotone Increasing Digits Math	Medium	25.0%
740	Delete and Earn	Medium	25.0%
742	Closest Leaf in a Binary Tree Tree	Medium	25.0%
743	Network Delay Time Graph	Medium	25.0%
428	Serialize and Deserialize N-ary Tree Tree	Hard	25.0%
762	Prime Number of Set Bits in Binary Representation Math	Easy	25.0%
700	Search in a Binary Search Tree TreeBinary Search	Easy	25.0%
701	Insert into a Binary Search Tree TreeBinary Search	Medium	25.0%
772	Basic Calculator III	Hard	25.0%
775	Global and Local Inversions	Medium	25.0%
776	Split BST Tree	Medium	25.0%
778	Swim in Rising Water	Hard	25.0%
797	All Paths From Source to Target	Medium	25.0%
801	Minimum Swaps To Make Sequences Increasing	Hard	25.0%
819	Most Common Word	Easy	25.0%
707	Design Linked List Linked List	Medium	25.0%
841	Keys and Rooms	Medium	25.0%
842	Split Array into Fibonacci Sequence ArrayDP	Medium	25.0%
843	Guess the Word	Hard	25.0%
844	Backspace String Compare String	Easy	25.0%
851	Loud and Rich	Medium	25.0%
853	Car Fleet	Medium	25.0%
860	Lemonade Change	Easy	25.0%
862	Shortest Subarray with Sum at Least K Array	Hard	25.0%
867	Transpose Matrix Array	Easy	25.0%
878	Nth Magical Number Math	Hard	25.0%
890	Find and Replace Pattern	Medium	25.0%
895	Maximum Frequency Stack Stack/Queue	Hard	25.0%
899	Orderly Queue Stack/Queue	Hard	25.0%
902	Numbers At Most N Given Digit Set Math	Hard	25.0%
918	Maximum Sum Circular Subarray Array	Medium	25.0%
922	Sort Array By Parity II Array	Easy	25.0%
926	Flip String to Monotone Increasing String	Medium	25.0%
933	Number of Recent Calls Math	Easy	25.0%
934	Shortest Bridge	Medium	25.0%
947	Most Stones Removed with Same Row or Column	Medium	25.0%
957	Prison Cells After N Days	Medium	25.0%
974	Subarray Sums Divisible by K Array	Medium	25.0%
979	Distribute Coins in Binary Tree Tree	Medium	25.0%
980	Unique Paths III	Hard	25.0%
983	Minimum Cost For Tickets	Medium	25.0%
986	Interval List Intersections	Medium	25.0%
997	Find the Town Judge	Easy	25.0%
1000	Minimum Cost to Merge Stones	Hard	25.0%
1002	Find Common Characters	Easy	25.0%
1010	Pairs of Songs With Total Durations Divisible by 60	Medium	25.0%
1060	Missing Element in Sorted Array Array	Medium	25.0%
1062	Longest Repeating Substring StringTree	Medium	25.0%
1067	Digit Count in Range Math	Hard	25.0%
1086	High Five	Easy	25.0%
1065	Index Pairs of a String String	Easy	25.0%
1022	Sum of Root To Leaf Binary Numbers Math	Easy	25.0%
1085	Sum of Digits in the Minimum Number Math	Easy	25.0%
1099	Two Sum Less Than K Sliding Window	Easy	25.0%
1100	Find K-Length Substrings With No Repeated Characters StringTree	Medium	25.0%
1118	Number of Days in a Month Math	Easy	25.0%
1119	Remove Vowels from a String String	Easy	25.0%
1134	Armstrong Number Math	Easy	25.0%
1120	Maximum Average Subtree Tree	Medium	25.0%
1026	Maximum Difference Between Node and Ancestor Linked List	Medium	25.0%
1028	Recover a Tree From Preorder Traversal Tree	Hard	25.0%
1133	Largest Unique Number Math	Easy	25.0%
1102	Path With Maximum Minimum Value	Medium	25.0%
1135	Connecting Cities With Minimum Cost	Medium	25.0%
1035	Uncrossed Lines	Medium	25.0%
1160	Find Words That Can Be Formed by Characters	Easy	25.0%
1044	Longest Duplicate Substring StringTree	Hard	25.0%
1166	Design File System	Medium	25.0%
1167	Minimum Cost to Connect Sticks	Medium	25.0%
1046	Last Stone Weight	Easy	25.0%
1050	Actors and Directors Who Cooperated At Least Three Times	Easy	25.0%
1054	Distant Barcodes	Medium	25.0%
1074	Number of Submatrices That Sum to Target Math	Hard	25.0%
1214	Two Sum BSTs TreeSliding Window	Medium	25.0%
1069	Product Sales Analysis II	Easy	25.0%
1080	Insufficient Nodes in Root to Leaf Paths Linked List	Medium	25.0%
1092	Shortest Common Supersequence	Hard	25.0%
1082	Sales Analysis I	Easy	25.0%
1083	Sales Analysis II	Easy	25.0%
1084	Sales Analysis III	Easy	25.0%
550	Game Play Analysis IV	Medium	25.0%
1094	Car Pooling	Medium	25.0%
1095	Find in Mountain Array Array	Hard	25.0%
1106	Parsing A Boolean Expression	Hard	25.0%
1259	Handshakes That Don't Cross	Hard	25.0%
1288	Remove Covered Intervals	Medium	25.0%
1129	Shortest Path with Alternating Colors	Medium	25.0%
1137	N-th Tribonacci Number Math	Easy	25.0%
1315	Sum of Nodes with Even-Valued Grandparent DPLinked List	Medium	25.0%
1141	User Activity for the Past 30 Days I	Easy	25.0%
1146	Snapshot Array Array	Medium	25.0%
1155	Number of Dice Rolls With Target Sum Math	Medium	25.0%
1362	Closest Divisors	Medium	25.0%
1363	Largest Multiple of Three	Hard	25.0%
1164	Product Price at a Given Date	Medium	25.0%
1175	Prime Arrangements Math	Easy	25.0%
1176	Diet Plan Performance	Easy	25.0%
1186	Maximum Subarray Sum with One Deletion Array	Medium	25.0%
1954	Minimum Garden Perimeter to Collect Enough Apples	Medium	25.0%
1179	Reformat Department Table	Easy	25.0%
1405	Longest Happy String String	Medium	25.0%
1944	Number of Visible People in a Queue Stack/QueueMath	Hard	25.0%
1211	Queries Quality and Percentage	Easy	25.0%
1233	Remove Sub-Folders from the Filesystem	Medium	25.0%
1249	Minimum Remove to Make Valid Parentheses Stack/Queue	Medium	25.0%
1255	Maximum Score Words Formed by Letters	Hard	25.0%
1260	Shift 2D Grid	Easy	25.0%
2215	Find the Difference of Two Arrays Array	Easy	25.0%
1275	Find Winner on a Tic Tac Toe Game	Easy	25.0%
1293	Shortest Path in a Grid with Obstacles Elimination Tree	Hard	25.0%
2305	Fair Distribution of Cookies	Medium	25.0%
1304	Find N Unique Integers Sum up to Zero Math	Easy	25.0%
1305	All Elements in Two Binary Search Trees TreeBinary Search	Medium	25.0%
1311	Get Watched Videos by Your Friends	Medium	25.0%
1303	Find the Team Size	Easy	25.0%
1319	Number of Operations to Make Network Connected GraphMath	Medium	25.0%
1325	Delete Leaves With a Given Value	Medium	25.0%
1326	Minimum Number of Taps to Open to Water a Garden Math	Hard	25.0%
1321	Restaurant Growth	Medium	25.0%
1332	Remove Palindromic Subsequences String	Easy	25.0%
1335	Minimum Difficulty of a Job Schedule	Hard	25.0%
1358	Number of Substrings Containing All Three Characters StringTreeMath	Medium	25.0%
1327	List the Products Ordered in a Period	Easy	25.0%
1337	The K Weakest Rows in a Matrix Array	Easy	25.0%
1341	Movie Rating	Medium	25.0%
1350	Students With Invalid Departments	Easy	25.0%
1365	How Many Numbers Are Smaller Than the Current Number Math	Easy	25.0%
1392	Longest Happy Prefix	Hard	25.0%
1395	Count Number of Teams Math	Medium	25.0%
1404	Number of Steps to Reduce a Number in Binary Representation to One Math	Medium	25.0%
1408	String Matching in an Array ArrayString	Easy	25.0%
1409	Queries on a Permutation With Key	Medium	25.0%
1421	NPV Queries	Easy	25.0%
1457	Pseudo-Palindromic Paths in a Binary Tree Tree	Medium	25.0%
1458	Max Dot Product of Two Subsequences String	Hard	25.0%
1478	Allocate Mailboxes	Hard	25.0%
1466	Reorder Routes to Make All Paths Lead to the City Zero	Medium	25.0%
1470	Shuffle the Array Array	Easy	25.0%
1472	Design Browser History	Medium	25.0%
1493	Longest Subarray of 1's After Deleting One Element Array	Medium	25.0%
1489	Find Critical and Pseudo-Critical Edges in Minimum Spanning Tree Tree	Hard	25.0%
1497	Check If Array Pairs Are Divisible by k Array	Medium	25.0%
1498	Number of Subsequences That Satisfy the Given Sum Condition StringMath	Medium	25.0%
1479	Sales by Day of the Week	Hard	25.0%
1485	Clone Binary Tree With Random Pointer Tree	Medium	25.0%
1502	Can Make Arithmetic Progression From Sequence	Easy	25.0%
1490	Clone N-ary Tree Tree	Medium	25.0%
1512	Number of Good Pairs Math	Easy	25.0%
1495	Friendly Movies Streamed Last Month	Easy	25.0%
1520	Maximum Number of Non-Overlapping Substrings StringTreeMath	Hard	25.0%
1511	Customer Order Frequency	Easy	25.0%
1558	Minimum Numbers of Function Calls to Make Target Array ArrayMath	Medium	25.0%
1547	Minimum Cost to Cut a Stick	Hard	25.0%
1533	Find the Index of the Large Integer Math	Medium	25.0%
1574	Shortest Subarray to be Removed to Make Array Sorted Array	Medium	25.0%
1584	Min Cost to Connect All Points	Medium	25.0%
1571	Warehouse Manager	Easy	25.0%
1601	Maximum Number of Achievable Transfer Requests Math	Hard	25.0%
1621	Number of Sets of K Non-Overlapping Line Segments Math	Medium	25.0%
1597	Build Binary Expression Tree From Infix Expression Tree	Hard	25.0%
1614	Maximum Nesting Depth of the Parentheses	Easy	25.0%
1636	Sort Array by Increasing Frequency Array	Easy	25.0%
1631	Path With Minimum Effort	Medium	25.0%
1652	Defuse the Bomb	Easy	25.0%
1613	Find the Missing IDs	Medium	25.0%
1623	All Valid Triplets That Can Represent a Country	Easy	25.0%
1670	Design Front Middle Back Queue Stack/Queue	Medium	25.0%
1628	Design an Expression Tree With Evaluate Function Tree	Medium	25.0%
1634	Add Two Polynomials Represented as Linked Lists Linked List	Medium	25.0%
1658	Minimum Operations to Reduce X to Zero	Medium	25.0%
1679	Max Number of K-Sum Pairs Math	Medium	25.0%
1680	Concatenation of Consecutive Binary Numbers Math	Medium	25.0%
1700	Number of Students Unable to Eat Lunch Math	Easy	25.0%
1695	Maximum Erasure Value	Medium	25.0%
1676	Lowest Common Ancestor of a Binary Tree IV Tree	Medium	25.0%
1723	Find Minimum Time to Finish All Jobs	Hard	25.0%
1683	Invalid Tweets	Easy	25.0%
1732	Find the Highest Altitude	Easy	25.0%
1734	Decode XORed Permutation	Medium	25.0%
1735	Count Ways to Make Array With Product Array	Hard	25.0%
1699	Number of Calls Between Two Persons Math	Medium	25.0%
1750	Minimum Length of String After Deleting Similar Ends String	Medium	25.0%
1764	Form Array by Concatenating Subarrays of Another Array Array	Medium	25.0%
1731	The Number of Employees Which Report to Each Employee Math	Easy	25.0%
1740	Find Distance in a Binary Tree Tree	Medium	25.0%
1761	Minimum Degree of a Connected Trio in a Graph Graph	Hard	25.0%
1779	Find Nearest Point That Has the Same X or Y Coordinate	Easy	25.0%
1782	Count Pairs Of Nodes Linked List	Hard	25.0%
1741	Find Total Time Spent by Each Employee	Easy	25.0%
1772	Sort Features by Popularity	Medium	25.0%
1777	Product's Price for Each Store	Easy	25.0%
1783	Grand Slam Titles	Medium	25.0%
1788	Maximize the Beauty of the Garden	Hard	25.0%
1795	Rearrange Products Table	Easy	25.0%
1846	Maximum Element After Decreasing and Rearranging	Medium	25.0%
1847	Closest Room	Hard	25.0%
1809	Ad-Free Sessions	Easy	25.0%
1833	Maximum Ice Cream Bars	Medium	25.0%
1811	Find Interview Candidates	Medium	25.0%
1842	Next Palindrome Using Same Digits StringMath	Hard	25.0%
1852	Distinct Numbers in Each Subarray ArrayMath	Medium	25.0%
1886	Determine Whether Matrix Can Be Obtained By Rotation Array	Easy	25.0%
1889	Minimum Space Wasted From Packaging	Hard	25.0%
1910	Remove All Occurrences of a Substring StringTree	Medium	25.0%
1903	Largest Odd Number in String StringMath	Easy	25.0%
1926	Nearest Exit from Entrance in Maze	Medium	25.0%
1901	Find a Peak Element II Binary Search	Medium	25.0%
1920	Build Array from Permutation Array	Easy	25.0%
1923	Longest Common Subpath DP	Hard	25.0%
1942	The Number of the Smallest Unoccupied Chair Math	Medium	25.0%
2297	Jump Game VIII	Medium	25.0%
1930	Unique Length-3 Palindromic Subsequences String	Medium	25.0%
2307	Check for Contradictions in Equations	Hard	25.0%
1950	Maximum of Minimum Values in All Subarrays Array	Medium	25.0%
1958	Check if Move is Legal	Medium	25.0%
1955	Count Number of Special Subsequences StringMath	Hard	25.0%
1976	Number of Ways to Arrive at Destination Math	Medium	25.0%
1981	Minimize the Difference Between Target and Chosen Elements	Medium	25.0%
1984	Minimum Difference Between Highest and Lowest of K Scores	Easy	25.0%
2006	Count Number of Pairs With Absolute Difference K Math	Easy	25.0%
1971	Find if Path Exists in Graph Graph	Easy	25.0%
1998	GCD Sort of an Array Array	Hard	25.0%
2012	Sum of Beauty in the Array Array	Medium	25.0%
2028	Find Missing Observations	Medium	25.0%
2035	Partition Array Into Two Arrays to Minimize Sum Difference ArrayDP	Hard	25.0%
2053	Kth Distinct String in an Array ArrayString	Easy	25.0%
2064	Minimized Maximum of Products Distributed to Any Store	Medium	25.0%
2075	Decode the Slanted Ciphertext	Medium	25.0%
2100	Find Good Days to Rob the Bank	Medium	25.0%
2102	Sequentially Ordinal Rank Tracker	Hard	25.0%
2115	Find All Possible Recipes from Given Supplies	Medium	25.0%
2109	Adding Spaces to a String String	Medium	25.0%
2110	Number of Smooth Descent Periods of a Stock Math	Medium	25.0%
2111	Minimum Operations to Make the Array K-Increasing Array	Hard	25.0%
2130	Maximum Twin Sum of a Linked List Linked List	Medium	25.0%
2125	Number of Laser Beams in a Bank Math	Medium	25.0%
2145	Count the Hidden Sequences	Medium	25.0%
2134	Minimum Swaps to Group All 1's Together II	Medium	25.0%
2123	Minimum Operations to Remove Adjacent Ones in Matrix Array	Hard	25.0%
2160	Minimum Sum of Four Digit Number After Splitting Digits Math	Easy	25.0%
2195	Append K Integers With Minimal Sum Math	Medium	25.0%
2196	Create Binary Tree From Descriptions Tree	Medium	25.0%
2197	Replace Non-Coprime Numbers in Array ArrayMath	Hard	25.0%
2207	Maximize Number of Subsequences in a String StringMath	Medium	25.0%
2173	Longest Winning Streak	Hard	25.0%
2222	Number of Ways to Select Buildings Math	Medium	25.0%
2223	Sum of Scores of Built Strings String	Hard	25.0%
2261	K Divisible Elements Subarrays Array	Medium	25.0%
2262	Total Appeal of A String String	Hard	25.0%
2256	Minimum Average Difference	Medium	25.0%
2266	Count Number of Texts Math	Medium	25.0%
2274	Maximum Consecutive Floors Without Special Floors	Medium	25.0%
2270	Number of Ways to Split Array ArrayMath	Medium	25.0%
2244	Minimum Rounds to Complete All Tasks	Medium	25.0%
2279	Maximum Bags With Full Capacity of Rocks	Medium	25.0%
2219	Maximum Sum Score of Array Array	Medium	25.0%
2228	Users With Two Purchases Within Seven Days	Medium	25.0%
2287	Rearrange Characters to Make Target String String	Easy	25.0%
2238	Number of Times a Driver Was a Passenger Math	Medium	25.0%
2294	Partition Array Such That Maximum Difference Is K ArrayDP	Medium	25.0%
2295	Replace Elements in an Array Array	Medium	25.0%
2296	Design a Text Editor	Hard	25.0%
2300	Successful Pairs of Spells and Potions	Medium	25.0%
2322	Minimum Score After Removals on a Tree Tree	Hard	25.0%
2316	Count Unreachable Pairs of Nodes in an Undirected Graph GraphLinked List	Medium	25.0%
2268	Minimum Number of Keypresses Math	Medium	25.0%
2336	Smallest Number in Infinite Set Math	Medium	25.0%
2337	Move Pieces to Obtain a String String	Medium	25.0%
2333	Minimum Sum of Squared Difference	Medium	25.0%
2353	Design a Food Rating System	Medium	25.0%
2292	Products With Three or More Orders in Two Consecutive Years	Medium	25.0%
2364	Count Number of Bad Pairs Math	Medium	25.0%
2398	Maximum Number of Robots Within Budget Math	Hard	25.0%
2324	Product Sales Analysis IV	Medium	25.0%
2329	Product Sales Analysis V	Easy	25.0%
2375	Construct Smallest Number From DI String StringMath	Medium	25.0%
2323	Find Minimum Time to Finish All Jobs II	Medium	25.0%
2386	Find the K-Sum of an Array Array	Hard	25.0%
2380	Time Needed to Rearrange a Binary String String	Medium	25.0%
2330	Valid Palindrome IV String	Medium	25.0%
2340	Minimum Adjacent Swaps to Make a Valid Array Array	Medium	25.0%
2402	Meeting Rooms III	Hard	25.0%
2396	Strictly Palindromic Number Math	Medium	25.0%
2405	Optimal Partition of String StringDP	Medium	25.0%
2410	Maximum Matching of Players With Trainers	Medium	25.0%
2411	Smallest Subarrays With Maximum Bitwise OR Array	Medium	25.0%
2412	Minimum Money Required Before Transactions	Hard	25.0%
2394	Employees With Deductions	Medium	25.0%
2443	Sum of Number and Its Reverse Math	Medium	25.0%
2408	Design SQL	Medium	25.0%
2471	Minimum Number of Operations to Sort a Binary Tree by Level TreeMath	Medium	25.0%
2465	Number of Distinct Averages Math	Easy	25.0%
2422	Merge Operations to Turn Array Into a Palindrome ArrayString	Medium	25.0%
2485	Find the Pivot Integer Math	Easy	25.0%
2486	Append Characters to String to Make Subsequence String	Medium	25.0%
2487	Remove Nodes From Linked List Linked List	Medium	25.0%
2501	Longest Square Streak in an Array Array	Medium	25.0%
2502	Design Memory Allocator	Medium	25.0%
2497	Maximum Star Sum of a Graph Graph	Medium	25.0%
2482	Difference Between Ones and Zeros in Row and Column	Medium	25.0%
2474	Customers With Strictly Increasing Purchases	Hard	25.0%
2534	Time Taken to Cross the Door	Hard	25.0%
2527	Find Xor-Beauty of Array Array	Medium	25.0%
2578	Split With Minimum Sum	Easy	25.0%
2519	Count the Number of K-Big Indices Math	Hard	25.0%
2606	Find the Substring With Maximum Cost StringTree	Medium	25.0%
2641	Cousins in Binary Tree II Tree	Medium	25.0%
2563	Count the Number of Fair Pairs Math	Medium	25.0%
2575	Find the Divisibility Array of a String ArrayString	Medium	25.0%
2620	Counter	Easy	25.0%
2643	Row With Maximum Ones	Easy	25.0%
2638	Count the Number of K-Free Subsets Math	Medium	25.0%
2634	Filter Elements from Array Array	Easy	25.0%
2657	Find the Prefix Common Array of Two Arrays Array	Medium	25.0%
2704	To Be Or Not To Be	Easy	25.0%
2703	Return Length of Arguments Passed	Easy	25.0%
2747	Count Zero Request Servers	Medium	25.0%
2766	Relocate Marbles	Medium	25.0%
2762	Continuous Subarrays Array	Medium	25.0%
2816	Double a Number Represented as a Linked List Linked ListMath	Medium	25.0%
2781	Length of the Longest Valid Substring StringTree	Hard	25.0%
2801	Count Stepping Numbers in Range Math	Hard	25.0%
2841	Maximum Sum of Almost Unique Subarray Array	Medium	25.0%
2830	Maximize the Profit as the Salesman	Medium	25.0%
2782	Number of Unique Categories Math	Medium	25.0%
2855	Minimum Right Shifts to Sort the Array Array	Easy	25.0%
2832	Maximal Range That Each Element Is Maximum in It	Medium	25.0%
2870	Minimum Number of Operations to Make Array Empty ArrayMath	Medium	25.0%
2916	Subarrays Distinct Element Sum of Squares II Array	Hard	25.0%
2898	Maximum Linear Stock Score	Medium	25.0%
2917	Find the K-or of an Array Array	Easy	25.0%
2926	Maximum Balanced Subsequence Sum String	Hard	25.0%
2928	Distribute Candies Among Children I	Easy	25.0%
2937	Make Three Strings Equal String	Easy	25.0%
2949	Count Beautiful Substrings II StringTree	Hard	25.0%
2947	Count Beautiful Substrings I StringTree	Medium	25.0%
2945	Find Maximum Non-decreasing Array Length Array	Hard	25.0%
2927	Distribute Candies Among Children III	Hard	25.0%
2973	Find Number of Coins to Place in Tree Nodes TreeLinked ListMath	Hard	25.0%
2952	Minimum Number of Coins to be Added Math	Medium	25.0%
3005	Count Elements With Maximum Frequency	Easy	25.0%
3014	Minimum Number of Pushes to Type Word I Math	Easy	25.0%
3016	Minimum Number of Pushes to Type Word II Math	Medium	25.0%
3020	Find the Maximum Number of Elements in Subset Math	Medium	25.0%
3032	Count Numbers With Unique Digits II Math	Easy	25.0%
3075	Maximize Happiness of Selected Children	Medium	25.0%
3081	Replace Question Marks in String to Minimize Its Value String	Medium	25.0%
3134	Find the Median of the Uniqueness Array ArrayHeap	Hard	25.0%
3092	Most Frequent IDs	Medium	25.0%
3113	Find the Number of Subarrays Where Boundary Elements Are Maximum ArrayMath	Hard	25.0%
3121	Count the Number of Special Characters II Math	Medium	25.0%
3120	Count the Number of Special Characters I Math	Easy	25.0%
3154	Find Number of Ways to Reach the K-th Stair Math	Hard	25.0%
3211	Generate Binary Strings Without Adjacent Zeros String	Medium	25.0%
3194	Minimum Average of Smallest and Largest Elements	Easy	25.0%
3199	Count Triplets with Even XOR Set Bits I	Easy	25.0%
3215	Count Triplets with Even XOR Set Bits II	Medium	25.0%
840	Magic Squares In Grid	Medium	25.0%
2477	Minimum Fuel Cost to Report to the Capital	Medium	25.0%
1633	Percentage of Users Attended a Contest	Easy	25.0%
3217	Delete Nodes From Linked List Present in Array ArrayLinked List	Medium	25.0%
3043	Find the Length of the Longest Common Prefix DP	Medium	25.0%
1049	Last Stone Weight II	Medium	25.0%
2938	Separate Black and White Balls	Medium	25.0%
1975	Maximum Matrix Sum Array	Medium	25.0%
3369	Design an Array Statistics Tracker Array	Hard	25.0%
3366	Minimum Array Sum Array	Medium	25.0%
2054	Two Best Non-Overlapping Events	Medium	25.0%
2050	Parallel Courses III	Hard	25.0%
769	Max Chunks To Make Sorted	Medium	25.0%
2193	Minimum Number of Moves to Make Palindrome StringMath	Hard	25.0%
2348	Number of Zero-Filled Subarrays ArrayMath	Medium	25.0%
3396	Minimum Number of Operations to Make Elements in Array Distinct ArrayMath	Easy	25.0%
3407	Substring Matching Pattern StringTree	Easy	25.0%
1267	Count Servers that Communicate	Medium	25.0%
1462	Course Schedule IV	Medium	25.0%
3174	Clear Digits Math	Easy	25.0%
3455	Shortest Matching Substring StringTree	Hard	25.0%
1475	Final Prices With a Special Discount in a Shop	Easy	25.0%
3453	Separate Squares I	Medium	25.0%
3462	Maximum Sum With at Most K Elements	Medium	25.0%
3170	Lexicographically Minimum String After Removing Stars StringGraph	Medium	25.0%
3461	Check If Digits Are Equal in String After Operations I StringMath	Easy	25.0%
2560	House Robber IV	Medium	25.0%
2226	Maximum Candies Allocated to K Children	Medium	25.0%
2170	Minimum Operations to Make the Array Alternating Array	Medium	25.0%
1848	Minimum Distance to the Target Element	Easy	25.0%
3531	Count Covered Buildings	Medium	25.0%
3392	Count Subarrays of Length Three With a Condition Array	Easy	25.0%
3234	Count the Number of Substrings With Dominant Ones StringTreeMath	Medium	25.0%
3572	Maximize Y‑Sum by Picking a Triplet of Distinct X‑Values	Medium	25.0%
3304	Find the K-th Character in String Game I String	Easy	25.0%
3201	Find the Maximum Length of Valid Subsequence I String	Medium	25.0%
2488	Count Subarrays With Median K ArrayHeap	Hard	25.0%
808	Soup Servings	Medium	25.0%
3645	Maximum Total from Optimal Activation Order	Medium	25.0%
3639	Minimum Time to Activate String String	Medium	25.0%
3605	Minimum Stability Factor of Array Array	Hard	25.0%
3637	Trionic Array I Array	Easy	25.0%
3636	Threshold Majority Queries	Hard	25.0%
3640	Trionic Array II Array	Hard	25.0%
3627	Maximum Median Sum of Subsequences of Size 3 StringHeap	Medium	25.0%
3634	Minimum Removals to Balance Array Array	Medium	25.0%
837	New 21 Game	Medium	25.0%
3197	Find the Minimum Area to Cover All Ones II	Hard	25.0%
3648	Minimum Sensors to Cover Grid	Medium	25.0%
1488	Avoid Flood in The City	Medium	25.0%
3730	Maximum Calories Burnt from Jumps	Medium	25.0%
2910	Minimum Number of Groups to Create a Valid Assignment Math	Medium	25.0%
3767	Maximize Points After Choosing K Tasks	Medium	25.0%
3785	Minimum Swaps to Avoid Forbidden Values	Hard	25.0%
3786	Total Sum of Interaction Cost in Tree Groups Tree	Hard	25.0%
3781	Maximum Score After Binary Swaps	Medium	25.0%
3794	Reverse String Prefix String	Easy	25.0%
3806	Maximum Bitwise AND After Increment Operations	Hard	25.0%
3814	Maximum Capacity Within Budget	Medium	25.0%
3010	Divide an Array Into Subarrays With Minimum Cost I Array	Easy	25.0%
3864	Minimum Cost to Partition a Binary String StringDP	Hard	25.0%
3863	Minimum Operations to Sort a String String	Medium	25.0%
3867	Sum of GCD of Formed Pairs	Medium	25.0%
3920	Maximize Fixed Points After Deletions	Hard	25.0%
3927	Minimize Array Sum Using Divisible Replacements Array	Medium	25.0%
3922	Minimum Flips to Make Binary String Coherent String	Medium	25.0%
3948	Lexicographically Maximum MEX Array ArrayGraph	Hard	25.0%
3942	Minimum Operations to Sort a Permutation	Medium	25.0%
3952	Maximum Total Value of Covered Indices	Medium	25.0%
3976	Maximum Subarray Sum After Multiplier Array	Medium	25.0%
107	Binary Tree Level Order Traversal II Tree	Medium	12.5%
117	Populating Next Right Pointers in Each Node II Linked List	Medium	12.5%
154	Find Minimum in Rotated Sorted Array II ArrayBinary Search	Hard	12.5%
159	Longest Substring with At Most Two Distinct Characters StringTree	Medium	12.5%
164	Maximum Gap	Medium	12.5%
166	Fraction to Recurring Decimal	Medium	12.5%
193	Valid Phone Numbers Math	Easy	12.5%
201	Bitwise AND of Numbers Range Math	Medium	12.5%
220	Contains Duplicate III	Hard	12.5%
222	Count Complete Tree Nodes TreeLinked List	Easy	12.5%
243	Shortest Word Distance	Easy	12.5%
261	Graph Valid Tree TreeGraph	Medium	12.5%
272	Closest Binary Search Tree Value II TreeBinary Search	Hard	12.5%
296	Best Meeting Point	Hard	12.5%
301	Remove Invalid Parentheses Stack/Queue	Hard	12.5%
309	Best Time to Buy and Sell Stock with Cooldown	Medium	12.5%
317	Shortest Distance from All Buildings	Hard	12.5%
318	Maximum Product of Word Lengths	Medium	12.5%
321	Create Maximum Number Math	Hard	12.5%
324	Wiggle Sort II	Medium	12.5%
325	Maximum Size Subarray Sum Equals k Array	Medium	12.5%
327	Count of Range Sum	Hard	12.5%
330	Patching Array Array	Hard	12.5%
336	Palindrome Pairs String	Hard	12.5%
340	Longest Substring with At Most K Distinct Characters StringTree	Medium	12.5%
343	Integer Break Math	Medium	12.5%
366	Find Leaves of Binary Tree Tree	Medium	12.5%
369	Plus One Linked List Linked List	Medium	12.5%
372	Super Pow Math	Medium	12.5%
374	Guess Number Higher or Lower Math	Easy	12.5%
377	Combination Sum IV	Medium	12.5%
384	Shuffle an Array Array	Medium	12.5%
385	Mini Parser	Medium	12.5%
388	Longest Absolute File Path	Medium	12.5%
398	Random Pick Index	Medium	12.5%
404	Sum of Left Leaves	Easy	12.5%
405	Convert a Number to Hexadecimal Math	Easy	12.5%
406	Queue Reconstruction by Height Stack/Queue	Medium	12.5%
413	Arithmetic Slices	Medium	12.5%
420	Strong Password Checker	Hard	12.5%
421	Maximum XOR of Two Numbers in an Array ArrayMath	Medium	12.5%
436	Find Right Interval	Medium	12.5%
446	Arithmetic Slices II - Subsequence String	Hard	12.5%
453	Minimum Moves to Equal Array Elements Array	Medium	12.5%
454	4Sum II	Medium	12.5%
457	Circular Array Loop Array	Medium	12.5%
461	Hamming Distance	Easy	12.5%
462	Minimum Moves to Equal Array Elements II Array	Medium	12.5%
464	Can I Win	Medium	12.5%
465	Optimal Account Balancing	Hard	12.5%
468	Validate IP Address	Medium	12.5%
480	Sliding Window Median Sliding WindowHeap	Hard	12.5%
481	Magical String String	Medium	12.5%
500	Keyboard Row	Easy	12.5%
506	Relative Ranks	Easy	12.5%
507	Perfect Number Math	Easy	12.5%
513	Find Bottom Left Tree Value Tree	Medium	12.5%
515	Find Largest Value in Each Tree Row Tree	Medium	12.5%
526	Beautiful Arrangement	Medium	12.5%
539	Minimum Time Difference	Medium	12.5%
554	Brick Wall	Medium	12.5%
564	Find the Closest Palindrome String	Hard	12.5%
581	Shortest Unsorted Continuous Subarray Array	Medium	12.5%
582	Kill Process	Medium	12.5%
583	Delete Operation for Two Strings String	Medium	12.5%
585	Investments in 2016	Medium	12.5%
587	Erect the Fence	Hard	12.5%
601	Human Traffic of Stadium	Hard	12.5%
602	Friend Requests II: Who Has the Most Friends	Medium	12.5%
607	Sales Person	Easy	12.5%
620	Not Boring Movies	Easy	12.5%
627	Swap Sex of Employees	Easy	12.5%
638	Shopping Offers	Medium	12.5%
649	Dota2 Senate	Medium	12.5%
655	Print Binary Tree Tree	Medium	12.5%
664	Strange Printer	Hard	12.5%
669	Trim a Binary Search Tree TreeBinary Search	Medium	12.5%
673	Number of Longest Increasing Subsequence StringMath	Medium	12.5%
686	Repeated String Match String	Medium	12.5%
712	Minimum ASCII Delete Sum for Two Strings String	Medium	12.5%
714	Best Time to Buy and Sell Stock with Transaction Fee	Medium	12.5%
715	Range Module	Hard	12.5%
718	Maximum Length of Repeated Subarray Array	Medium	12.5%
720	Longest Word in Dictionary	Medium	12.5%
726	Number of Atoms Math	Hard	12.5%
731	My Calendar II	Medium	12.5%
744	Find Smallest Letter Greater Than Target	Easy	12.5%
754	Reach a Number Math	Medium	12.5%
426	Convert Binary Search Tree to Sorted Doubly Linked List TreeLinked ListBinary Search	Medium	12.5%
759	Employee Free Time	Hard	12.5%
429	N-ary Tree Level Order Traversal Tree	Medium	12.5%
427	Construct Quad Tree Tree	Medium	12.5%
779	K-th Symbol in Grammar	Medium	12.5%
780	Reaching Points	Hard	12.5%
781	Rabbits in Forest	Medium	12.5%
784	Letter Case Permutation	Medium	12.5%
788	Rotated Digits Binary SearchMath	Medium	12.5%
792	Number of Matching Subsequences StringMath	Medium	12.5%
705	Design HashSet	Easy	12.5%
812	Largest Triangle Area	Easy	12.5%
814	Binary Tree Pruning Tree	Medium	12.5%
817	Linked List Components Linked List	Medium	12.5%
826	Most Profit Assigning Work	Medium	12.5%
828	Count Unique Characters of All Substrings of a Given String StringTree	Hard	12.5%
832	Flipping an Image	Easy	12.5%
834	Sum of Distances in Tree Tree	Hard	12.5%
489	Robot Room Cleaner	Hard	12.5%
836	Rectangle Overlap	Easy	12.5%
839	Similar String Groups String	Hard	12.5%
845	Longest Mountain in Array Array	Medium	12.5%
846	Hand of Straights	Medium	12.5%
847	Shortest Path Visiting All Nodes Linked List	Hard	12.5%
849	Maximize Distance to Closest Person	Medium	12.5%
857	Minimum Cost to Hire K Workers	Hard	12.5%
869	Reordered Power of 2 Math	Medium	12.5%
870	Advantage Shuffle	Medium	12.5%
872	Leaf-Similar Trees Tree	Easy	12.5%
874	Walking Robot Simulation	Medium	12.5%
879	Profitable Schemes	Hard	12.5%
880	Decoded String at Index String	Medium	12.5%
885	Spiral Matrix III Array	Medium	12.5%
887	Super Egg Drop	Hard	12.5%
888	Fair Candy Swap	Easy	12.5%
889	Construct Binary Tree from Preorder and Postorder Traversal Tree	Medium	12.5%
894	All Possible Full Binary Trees Tree	Medium	12.5%
896	Monotonic Array ArrayStack/Queue	Easy	12.5%
897	Increasing Order Search Tree Tree	Easy	12.5%
905	Sort Array By Parity Array	Easy	12.5%
910	Smallest Range II	Medium	12.5%
932	Beautiful Array Array	Medium	12.5%
935	Knight Dialer	Medium	12.5%
938	Range Sum of BST Tree	Easy	12.5%
941	Valid Mountain Array Array	Easy	12.5%
945	Minimum Increment to Make Array Unique Array	Medium	12.5%
946	Validate Stack Sequences Stack/Queue	Medium	12.5%
950	Reveal Cards In Increasing Order	Medium	12.5%
951	Flip Equivalent Binary Trees Tree	Medium	12.5%
953	Verifying an Alien Dictionary	Easy	12.5%
958	Check Completeness of a Binary Tree Tree	Medium	12.5%
959	Regions Cut By Slashes	Medium	12.5%
976	Largest Perimeter Triangle	Easy	12.5%
993	Cousins in Binary Tree Tree	Easy	12.5%
995	Minimum Number of K Consecutive Bit Flips Math	Hard	12.5%
1019	Next Greater Node In Linked List Linked List	Medium	12.5%
1020	Number of Enclaves Math	Medium	12.5%
1025	Divisor Game	Easy	12.5%
1027	Longest Arithmetic Subsequence String	Medium	12.5%
1029	Two City Scheduling	Medium	12.5%
1032	Stream of Characters	Hard	12.5%
1039	Minimum Score Triangulation of Polygon	Medium	12.5%
1161	Maximum Level Sum of a Binary Tree Tree	Medium	12.5%
1162	As Far from Land as Possible	Medium	12.5%
1041	Robot Bounded In Circle	Medium	12.5%
1043	Partition Array for Maximum Sum ArrayDP	Medium	12.5%
1048	Longest String Chain String	Medium	12.5%
1163	Last Substring in Lexicographical Order StringTreeGraph	Hard	12.5%
1051	Height Checker	Easy	12.5%
1052	Grumpy Bookstore Owner	Medium	12.5%
1197	Minimum Knight Moves	Medium	12.5%
1075	Project Employees I	Easy	12.5%
1229	Meeting Scheduler	Medium	12.5%
1089	Duplicate Zeros	Easy	12.5%
1244	Design A Leaderboard	Medium	12.5%
511	Game Play Analysis I	Easy	12.5%
1105	Filling Bookcase Shelves	Medium	12.5%
1108	Defanging an IP Address	Easy	12.5%
1110	Delete Nodes And Return Forest Linked List	Medium	12.5%
1122	Relative Sort Array Array	Easy	12.5%
1123	Lowest Common Ancestor of Deepest Leaves	Medium	12.5%
1287	Element Appearing More Than 25% In Sorted Array Array	Easy	12.5%
1140	Stone Game II	Medium	12.5%
1329	Sort the Matrix Diagonally Array	Medium	12.5%
1171	Remove Zero Sum Consecutive Nodes from Linked List Linked List	Medium	12.5%
1169	Invalid Transactions	Medium	12.5%
1360	Number of Days Between Two Dates Math	Easy	12.5%
1550	Three Consecutive Odds	Easy	12.5%
1483	Kth Ancestor of a Tree Node TreeLinked List	Hard	12.5%
1190	Reverse Substrings Between Each Pair of Parentheses StringTree	Medium	12.5%
2139	Minimum Moves to Reach Target Score	Medium	12.5%
1514	Path with Maximum Probability	Medium	12.5%
1204	Last Person to Fit in the Bus	Medium	12.5%
1219	Path with Maximum Gold	Medium	12.5%
1232	Check If It Is a Straight Line	Easy	12.5%
2273	Find Resultant Array After Removing Anagrams ArrayString	Easy	12.5%
1225	Report Contiguous Dates	Hard	12.5%
1248	Count Number of Nice Subarrays ArrayMath	Medium	12.5%
1254	Number of Closed Islands GraphMath	Medium	12.5%
1282	Group the People Given the Group Size They Belong To	Medium	12.5%
1290	Convert Binary Number in a Linked List to Integer Linked ListMath	Easy	12.5%
1292	Maximum Side Length of a Square with Sum Less than or Equal to Threshold	Medium	12.5%
1295	Find Numbers with Even Number of Digits Math	Easy	12.5%
1310	XOR Queries of a Subarray Array	Medium	12.5%
1312	Minimum Insertion Steps to Make a String Palindrome String	Hard	12.5%
1342	Number of Steps to Reduce a Number to Zero Math	Easy	12.5%
1345	Jump Game IV	Hard	12.5%
1323	Maximum 69 Number Math	Easy	12.5%
1334	Find the City With the Smallest Number of Neighbors at a Threshold Distance Math	Medium	12.5%
1356	Sort Integers by The Number of 1 Bits Math	Easy	12.5%
1339	Maximum Product of Splitted Binary Tree Tree	Medium	12.5%
1346	Check If N and Its Double Exist	Easy	12.5%
1347	Minimum Number of Steps to Make Two Strings Anagram StringMath	Medium	12.5%
1372	Longest ZigZag Path in a Binary Tree Tree	Medium	12.5%
1352	Product of the Last K Numbers Math	Medium	12.5%
1367	Linked List in Binary Tree TreeLinked List	Medium	12.5%
1376	Time Needed to Inform All Employees	Medium	12.5%
1381	Design a Stack With Increment Operation Stack/Queue	Medium	12.5%
1389	Create Target Array in the Given Order Array	Easy	12.5%
1396	Design Underground System	Medium	12.5%
1422	Maximum Score After Splitting a String String	Easy	12.5%
1424	Diagonal Traverse II	Medium	12.5%
1448	Count Good Nodes in Binary Tree TreeLinked List	Medium	12.5%
1436	Destination City	Easy	12.5%
1463	Cherry Pickup II	Hard	12.5%
1464	Maximum Product of Two Elements in an Array Array	Easy	12.5%
1481	Least Number of Unique Integers after K Removals Math	Medium	12.5%
1509	Minimum Difference Between Largest and Smallest Value in Three Moves	Medium	12.5%
1523	Count Odd Numbers in an Interval Range Math	Easy	12.5%
1526	Minimum Number of Increments on Subarrays to Form a Target Array ArrayMath	Hard	12.5%
1531	String Compression II String	Hard	12.5%
1518	Water Bottles	Easy	12.5%
1529	Minimum Suffix Flips	Medium	12.5%
1534	Count Good Triplets	Easy	12.5%
1544	Make The String Great String	Easy	12.5%
1545	Find Kth Bit in Nth Binary String String	Medium	12.5%
1572	Matrix Diagonal Sum Array	Easy	12.5%
1561	Maximum Number of Coins You Can Get Math	Medium	12.5%
1567	Maximum Length of Subarray With Positive Product Array	Medium	12.5%
1588	Sum of All Odd Length Subarrays Array	Easy	12.5%
1570	Dot Product of Two Sparse Vectors	Medium	12.5%
1608	Special Array With X Elements Greater Than or Equal X Array	Easy	12.5%
1637	Widest Vertical Area Between Two Points Containing No Points	Easy	12.5%
1668	Maximum Repeating Substring StringTree	Easy	12.5%
1669	Merge In Between Linked Lists Linked List	Medium	12.5%
1671	Minimum Number of Removals to Make Mountain Array ArrayMath	Hard	12.5%
1646	Get Maximum in Generated Array Array	Easy	12.5%
1647	Minimum Deletions to Make Character Frequencies Unique	Medium	12.5%
1657	Determine if Two Strings Are Close String	Medium	12.5%
1662	Check If Two String Arrays are Equivalent ArrayString	Easy	12.5%
1685	Sum of Absolute Differences in a Sorted Array Array	Medium	12.5%
1672	Richest Customer Wealth	Easy	12.5%
1688	Count of Matches in Tournament	Easy	12.5%
1689	Partitioning Into Minimum Number Of Deci-Binary Numbers DPMath	Medium	12.5%
1716	Calculate Money in Leetcode Bank	Easy	12.5%
1717	Maximum Score From Removing Substrings StringTree	Medium	12.5%
1718	Construct the Lexicographically Largest Valid Sequence Graph	Medium	12.5%
1751	Maximum Number of Events That Can Be Attended II Math	Hard	12.5%
1760	Minimum Limit of Balls in a Bag	Medium	12.5%
1769	Minimum Number of Operations to Move All Balls to Each Box Math	Medium	12.5%
1762	Buildings With an Ocean View	Medium	12.5%
1790	Check if One String Swap Can Make Strings Equal String	Easy	12.5%
1791	Find Center of Star Graph Graph	Easy	12.5%
1823	Find the Winner of the Circular Game	Medium	12.5%
1832	Check if the Sentence Is Pangram	Easy	12.5%
1834	Single-Threaded CPU	Medium	12.5%
1859	Sorting the Sentence	Easy	12.5%
1854	Maximum Population Year	Easy	12.5%
1876	Substrings of Size Three with Distinct Characters StringTree	Easy	12.5%
1882	Process Tasks Using Servers	Medium	12.5%
1909	Remove One Element to Make the Array Strictly Increasing Array	Easy	12.5%
1963	Minimum Number of Swaps to Make the String Balanced StringMath	Medium	12.5%
1969	Minimum Non-Zero Product of the Array Elements Array	Medium	12.5%
1986	Minimum Number of Work Sessions to Finish the Tasks Math	Medium	12.5%
2000	Reverse Prefix of Word	Easy	12.5%
2022	Convert 1D Array Into 2D Array Array	Easy	12.5%
2011	Final Value of Variable After Performing Operations	Easy	12.5%
2013	Detect Squares	Medium	12.5%
2037	Minimum Number of Moves to Seat Everyone Math	Easy	12.5%
2058	Find the Minimum and Maximum Number of Nodes Between Critical Points Linked ListMath	Medium	12.5%
2073	Time Needed to Buy Tickets	Easy	12.5%
2099	Find Subsequence of Length K With the Largest Sum String	Easy	12.5%
2101	Detonate the Maximum Bombs	Medium	12.5%
2092	Find All People With Secret	Hard	12.5%
2095	Delete the Middle Node of a Linked List Linked List	Medium	12.5%
2096	Step-By-Step Directions From a Binary Tree Node to Another TreeLinked List	Medium	12.5%
2116	Check if a Parentheses String Can Be Valid String	Medium	12.5%
2127	Maximum Employees to Be Invited to a Meeting	Hard	12.5%
2140	Solving Questions With Brainpower Math	Medium	12.5%
2181	Merge Nodes in Between Zeros Linked List	Medium	12.5%
2220	Minimum Bit Flips to Convert Number Math	Easy	12.5%
2259	Remove Digit From Number to Maximize Result Math	Easy	12.5%
2258	Escape the Spreading Fire	Hard	12.5%
2239	Find Closest Number to Zero Math	Easy	12.5%
2246	Longest Path With Different Adjacent Characters	Hard	12.5%
2236	Root Equals Sum of Children	Easy	12.5%
2325	Decode the Message	Easy	12.5%
2352	Equal Row and Column Pairs	Medium	12.5%
2360	Longest Cycle in a Graph GraphLinked List	Hard	12.5%
2401	Longest Nice Subarray Array	Medium	12.5%
2413	Smallest Even Multiple	Easy	12.5%
2356	Number of Unique Subjects Taught by Each Teacher Math	Easy	12.5%
2441	Largest Positive Integer That Exists With Its Negative Math	Easy	12.5%
2444	Count Subarrays With Fixed Bounds Array	Hard	12.5%
2439	Minimize Maximum of Array Array	Medium	12.5%
2449	Minimum Number of Operations to Make Arrays Similar ArrayMath	Hard	12.5%
2460	Apply Operations to an Array Array	Easy	12.5%
2469	Convert the Temperature	Easy	12.5%
2468	Split Message Based on Limit	Hard	12.5%
2535	Difference Between Element Sum and Digit Sum of an Array ArrayMath	Easy	12.5%
2537	Count the Number of Good Subarrays ArrayMath	Medium	12.5%
2542	Maximum Subsequence Score String	Medium	12.5%
2558	Take Gifts From the Richest Pile	Easy	12.5%
2597	The Number of Beautiful Subsets Math	Medium	12.5%
2616	Minimize the Maximum Difference of Pairs	Medium	12.5%
2621	Sleep	Easy	12.5%
2619	Array Prototype Last Array	Easy	12.5%
2629	Function Composition	Easy	12.5%
2635	Apply Transform Over Each Element in Array Array	Easy	12.5%
2653	Sliding Subarray Beauty Array	Medium	12.5%
2707	Extra Characters in a String String	Medium	12.5%
2706	Buy Two Chocolates	Easy	12.5%
2622	Cache With Time Limit	Medium	12.5%
2665	Counter II	Easy	12.5%
2694	Event Emitter	Medium	12.5%
2742	Painting the Walls	Hard	12.5%
2769	Find the Maximum Achievable Number Math	Easy	12.5%
2799	Count Complete Subarrays in an Array Array	Medium	12.5%
2798	Number of Employees Who Met the Target Math	Easy	12.5%
2824	Count Pairs Whose Sum is Less than Target	Easy	12.5%
2864	Maximum Odd Binary Number Math	Easy	12.5%
2879	Display the First Three Rows	Easy	12.5%
2942	Find Words Containing Character	Easy	12.5%
2962	Count Subarrays Where Max Element Appears at Least K Times Array	Medium	12.5%
2958	Length of Longest Subarray With at Most K Frequency Array	Medium	12.5%
2966	Divide Array Into Arrays With Max Difference Array	Medium	12.5%
2997	Minimum Number of Operations to Make Array XOR Equal to K ArrayMath	Medium	12.5%
3108	Minimum Cost Walk in Weighted Graph Graph	Hard	12.5%
3110	Score of a String String	Easy	12.5%
3133	Minimum Array End Array	Medium	12.5%
3152	Special Array II Array	Medium	12.5%
3151	Special Array I Array	Easy	12.5%
3164	Find the Number of Good Pairs II Math	Medium	12.5%
3202	Find the Maximum Length of Valid Subsequence II String	Medium	12.5%
1484	Group Sold Products By The Date	Easy	12.5%
978	Longest Turbulent Subarray Array	Medium	12.5%
2191	Sort the Jumbled Numbers Math	Medium	12.5%
400	Nth Digit Math	Medium	12.5%
1789	Primary Department for Each Employee	Easy	12.5%
2976	Minimum Cost to Convert String I String	Medium	12.5%
2685	Count the Number of Complete Components Math	Medium	12.5%
1653	Minimum Deletions to Make String Balanced String	Medium	12.5%
1216	Valid Palindrome III String	Hard	12.5%
1460	Make Two Arrays Equal by Reversing Subarrays Array	Easy	12.5%
313	Super Ugly Number Math	Medium	12.5%
1508	Range Sum of Sorted Subarray Sums Array	Medium	12.5%
1851	Minimum Interval to Include Each Query	Hard	12.5%
2365	Task Scheduler II	Medium	12.5%
2977	Minimum Cost to Convert String II String	Hard	12.5%
1221	Split a String in Balanced Strings String	Easy	12.5%
2094	Finding 3-Digit Even Numbers Math	Easy	12.5%
2074	Reverse Nodes in Even Length Groups Linked List	Medium	12.5%
1568	Minimum Number of Days to Disconnect Island GraphMath	Hard	12.5%
3235	Check if the Rectangle Corner Is Reachable	Hard	12.5%
3136	Valid Word	Easy	12.5%
365	Water and Jug Problem	Medium	12.5%
624	Maximum Distance in Arrays Array	Medium	12.5%
599	Minimum Index Sum of Two Lists	Easy	12.5%
2915	Length of the Longest Subsequence That Sums to Target String	Medium	12.5%
1937	Maximum Number of Points with Cost Math	Medium	12.5%
1606	Find Servers That Handled Most Number of Requests Math	Hard	12.5%
3191	Minimum Operations to Make Binary Array Elements Equal to One I Array	Medium	12.5%
590	N-ary Tree Postorder Traversal Tree	Easy	12.5%
697	Degree of an Array Array	Easy	12.5%
989	Add to Array-Form of Integer ArrayMath	Easy	12.5%
1410	HTML Entity Parser	Medium	12.5%
2334	Subarray With Elements Greater Than Varying Threshold Array	Hard	12.5%
1261	Find Elements in a Contaminated Binary Tree Tree	Medium	12.5%
576	Out of Boundary Paths	Medium	12.5%
1172	Dinner Plate Stacks Stack/Queue	Hard	12.5%
3281	Maximize Score of Numbers in Ranges Math	Medium	12.5%
3274	Check if Two Chessboard Squares Have the Same Color	Easy	12.5%
674	Longest Continuous Increasing Subsequence String	Easy	12.5%
794	Valid Tic-Tac-Toe State	Medium	12.5%
3105	Longest Strictly Increasing or Strictly Decreasing Subarray Array	Easy	12.5%
2734	Lexicographically Smallest String After Substring Operation StringTreeGraph	Medium	12.5%
2602	Minimum Operations to Make All Array Elements Equal Array	Medium	12.5%
2049	Count Nodes With the Highest Score Linked List	Medium	12.5%
2419	Longest Subarray With Maximum Bitwise AND Array	Medium	12.5%
1371	Find the Longest Substring Containing Vowels in Even Counts StringTree	Medium	12.5%
3193	Count the Number of Inversions Math	Hard	12.5%
884	Uncommon Words from Two Sentences	Easy	12.5%
170	Two Sum III - Data structure design Sliding Window	Easy	12.5%
2724	Sort By	Easy	12.5%
1525	Number of Good Ways to Split a String StringMath	Medium	12.5%
2290	Minimum Obstacle Removal to Reach Corner Tree	Hard	12.5%
2192	All Ancestors of a Node in a Directed Acyclic Graph GraphLinked List	Medium	12.5%
813	Largest Sum of Averages	Medium	12.5%
1625	Lexicographically Smallest String After Applying Operations StringGraph	Medium	12.5%
2227	Encrypt and Decrypt Strings String	Hard	12.5%
2751	Robot Collisions	Hard	12.5%
2416	Sum of Prefix Scores of Strings String	Hard	12.5%
3163	String Compression III String	Medium	12.5%
641	Design Circular Deque	Medium	12.5%
1331	Rank Transform of an Array Array	Easy	12.5%
619	Biggest Single Number Math	Easy	12.5%
774	Minimize Max Distance to Gas Station	Hard	12.5%
2491	Divide Players Into Teams of Equal Skill	Medium	12.5%
1813	Sentence Similarity III	Medium	12.5%
3019	Number of Changing Keys Math	Easy	12.5%
2696	Minimum String Length After Removing Substrings StringTree	Easy	12.5%
1541	Minimum Insertions to Balance a Parentheses String String	Medium	12.5%
291	Word Pattern II	Medium	12.5%
2406	Divide Intervals Into Minimum Number of Groups Math	Medium	12.5%
866	Prime Palindrome StringMath	Medium	12.5%
490	The Maze	Medium	12.5%
710	Random Pick with Blacklist	Hard	12.5%
2530	Maximal Score After Applying K Operations	Medium	12.5%
967	Numbers With Same Consecutive Differences Math	Medium	12.5%
358	Rearrange String k Distance Apart String	Hard	12.5%
2044	Count Number of Maximum Bitwise-OR Subsets Math	Medium	12.5%
919	Complete Binary Tree Inserter Tree	Medium	12.5%
1593	Split a String Into the Max Number of Unique Substrings StringTreeMath	Medium	12.5%
1403	Minimum Subsequence in Non-Increasing Order String	Easy	12.5%
440	K-th Smallest in Lexicographical Order Graph	Hard	12.5%
2418	Sort the People	Easy	12.5%
3326	Minimum Division Operations to Make Array Non Decreasing Array	Medium	12.5%
1817	Finding the Users Active Minutes	Medium	12.5%
1549	The Most Recent Orders for Each Product	Medium	12.5%
635	Design Log Storage System	Medium	12.5%
3159	Find Occurrences of an Element in an Array Array	Medium	12.5%
2017	Grid Game	Medium	12.5%
2663	Lexicographically Smallest Beautiful String StringGraph	Hard	12.5%
3011	Find if Array Can Be Sorted Array	Medium	12.5%
2275	Largest Combination With Bitwise AND Greater Than Zero	Medium	12.5%
2043	Simple Bank System	Medium	12.5%
2601	Prime Subtraction Operation Math	Medium	12.5%
2070	Most Beautiful Item for Each Query	Medium	12.5%
942	DI String Match String	Easy	12.5%
1343	Number of Sub-arrays of Size K and Average Greater than or Equal to Threshold ArrayMath	Medium	12.5%
3264	Final Array State After K Multiplication Operations I Array	Easy	12.5%
2414	Length of the Longest Alphabetical Continuous Substring StringTree	Medium	12.5%
1780	Check if Number is a Sum of Powers of Three Math	Medium	12.5%
3349	Adjacent Increasing Subarrays Detection I Array	Easy	12.5%
505	The Maze II	Medium	12.5%
2516	Take K of Each Character From Left and Right	Medium	12.5%
1072	Flip Columns For Maximum Number of Equal Rows Math	Medium	12.5%
2889	Reshape Data: Pivot	Easy	12.5%
1898	Maximum Number of Removable Characters Math	Medium	12.5%
281	Zigzag Iterator	Medium	12.5%
1713	Minimum Operations to Make a Subsequence String	Hard	12.5%
2577	Minimum Time to Visit a Cell In a Grid	Hard	12.5%
2097	Valid Arrangement of Pairs	Hard	12.5%
1596	The Most Frequently Ordered Products for Each Customer	Medium	12.5%
1455	Check If a Word Occurs As a Prefix of Any Word in a Sentence	Easy	12.5%
1871	Jump Game VII	Medium	12.5%
2593	Find Score of an Array After Marking All Elements Array	Medium	12.5%
1139	Largest 1-Bordered Square	Medium	12.5%
3229	Minimum Operations to Make Array Equal to Target Array	Hard	12.5%
1748	Sum of Unique Elements	Easy	12.5%
2872	Maximum Number of K-Divisible Components Math	Hard	12.5%
2940	Find Building Where Alice and Bob Can Meet	Hard	12.5%
3077	Maximum Strength of K Disjoint Subarrays Array	Hard	12.5%
2211	Count Collisions on a Road	Medium	12.5%
3386	Button with Longest Push Time	Easy	12.5%
1270	All People Report to the Given Manager	Medium	12.5%
1014	Best Sightseeing Pair	Medium	12.5%
689	Maximum Sum of 3 Non-Overlapping Subarrays Array	Hard	12.5%
2466	Count Ways To Build Good Strings String	Medium	12.5%
761	Special Binary String String	Hard	12.5%
292	Nim Game	Easy	12.5%
2559	Count Vowel Strings in Ranges String	Medium	12.5%
2381	Shifting Letters II	Medium	12.5%
2587	Rearrange Array to Maximize Prefix Score Array	Medium	12.5%
916	Word Subsets	Medium	12.5%
2789	Largest Element in an Array after Merge Operations Array	Medium	12.5%
690	Employee Importance	Medium	12.5%
1400	Construct K Palindrome Strings String	Medium	12.5%
3223	Minimum Length of String After Operations String	Medium	12.5%
1517	Find Users With Valid E-Mails	Easy	12.5%
2429	Minimize XOR	Medium	12.5%
2683	Neighboring Bitwise XOR	Medium	12.5%
1368	Minimum Cost to Make at Least One Valid Path in a Grid	Hard	12.5%
3429	Paint House IV	Medium	12.5%
1245	Tree Diameter Tree	Medium	12.5%
1765	Map of Highest Peak Binary Search	Medium	12.5%
2467	Most Profitable Path in a Tree Tree	Medium	12.5%
1443	Minimum Time to Collect All Apples in a Tree Tree	Medium	12.5%
1383	Maximum Performance of a Team	Hard	12.5%
2948	Make Lexicographically Smallest Array by Swapping Elements ArrayGraph	Medium	12.5%
1856	Maximum Subarray Min-Product Array	Medium	12.5%
2317	Maximum XOR After Operations	Medium	12.5%
2658	Maximum Number of Fish in a Grid Math	Medium	12.5%
2517	Maximum Tastiness of Candy Basket	Medium	12.5%
944	Delete Columns to Make Sorted	Easy	12.5%
3309	Maximum Possible Number by Binary Concatenation Math	Medium	12.5%
1800	Maximum Ascending Subarray Sum Array	Easy	12.5%
353	Design Snake Game	Medium	12.5%
1609	Even Odd Tree Tree	Medium	12.5%
2772	Apply Operations to Make All Array Elements Equal to Zero Array	Medium	12.5%
768	Max Chunks To Make Sorted II	Hard	12.5%
1726	Tuple with Same Product	Medium	12.5%
3160	Find the Number of Distinct Colors Among the Balls Math	Medium	12.5%
795	Number of Subarrays with Bounded Maximum ArrayMath	Medium	12.5%
2034	Stock Price Fluctuation	Medium	12.5%
3449	Maximize the Minimum Game Score	Hard	12.5%
2656	Maximum Sum With Exactly K Elements	Easy	12.5%
631	Design Excel Sum Formula	Hard	12.5%
3026	Maximum Good Subarray Sum Array	Medium	12.5%
3066	Minimum Operations to Exceed Threshold Value II	Medium	12.5%
1036	Escape a Large Maze	Hard	12.5%
2492	Minimum Score of a Path Between Two Cities	Medium	12.5%
2698	Find the Punishment Number of an Integer Math	Medium	12.5%
1415	The k-th Lexicographical String of All Happy Strings of Length n StringGraph	Medium	12.5%
370	Range Addition	Medium	12.5%
2319	Check if Matrix Is X-Matrix Array	Easy	12.5%
728	Self Dividing Numbers Math	Easy	12.5%
2493	Divide Nodes Into the Maximum Number of Groups Linked ListMath	Hard	12.5%
3458	Select K Disjoint Special Substrings StringTree	Medium	12.5%
1031	Maximum Sum of Two Non-Overlapping Subarrays Array	Medium	12.5%
1827	Minimum Operations to Make the Array Increasing Array	Easy	12.5%
250	Count Univalue Subtrees Tree	Medium	12.5%
1749	Maximum Absolute Sum of Any Subarray Array	Medium	12.5%
1524	Number of Sub-arrays With Odd Sum ArrayMath	Medium	12.5%
898	Bitwise ORs of Subarrays Array	Medium	12.5%
3454	Separate Squares II	Hard	12.5%
873	Length of Longest Fibonacci Subsequence StringDP	Medium	12.5%
657	Robot Return to Origin	Easy	12.5%
1366	Rank Teams by Votes	Medium	12.5%
147	Insertion Sort List	Medium	12.5%
737	Sentence Similarity II	Medium	12.5%
2579	Count Total Number of Colored Cells Math	Medium	12.5%
1559	Detect Cycles in 2D Grid GraphLinked List	Medium	12.5%
2523	Closest Prime Numbers in Range Math	Medium	12.5%
2379	Minimum Recolors to Get K Consecutive Black Blocks	Easy	12.5%
773	Sliding Puzzle	Hard	12.5%
609	Find Duplicate File in System	Medium	12.5%
3356	Zero Array Transformation II Array	Medium	12.5%
589	N-ary Tree Preorder Traversal Tree	Easy	12.5%
2594	Minimum Time to Repair Cars	Medium	12.5%
2206	Divide Array Into Equal Pairs Array	Easy	12.5%
1136	Parallel Courses	Medium	12.5%
2956	Find Common Elements Between Two Arrays Array	Easy	12.5%
352	Data Stream as Disjoint Intervals	Hard	12.5%
2062	Count Vowel Substrings of a String StringTree	Easy	12.5%
2484	Count Palindromic Subsequences String	Hard	12.5%
1439	Find the Kth Smallest Sum of a Matrix With Sorted Rows Array	Hard	12.5%
1200	Minimum Absolute Difference	Easy	12.5%
3169	Count Days Without Meetings	Medium	12.5%
3394	Check if Grid can be Cut into Sections	Medium	12.5%
2780	Minimum Index of a Valid Split	Medium	12.5%
3414	Maximum Score of Non-overlapping Intervals	Hard	12.5%
495	Teemo Attacking	Easy	12.5%
3306	Count of Substrings Containing Every Vowel and K Consonants II StringTree	Medium	12.5%
886	Possible Bipartition DP	Medium	12.5%
1262	Greatest Sum Divisible by Three	Medium	12.5%
1962	Remove Stones to Minimize the Total	Medium	12.5%
2874	Maximum Value of an Ordered Triplet II	Medium	12.5%
3230	Customer Purchasing Behavior Analysis	Medium	12.5%
1158	Market Analysis I	Medium	12.5%
3034	Number of Subarrays That Match a Pattern I ArrayMath	Medium	12.5%
3483	Unique 3-Digit Even Numbers Math	Easy	12.5%
563	Binary Tree Tilt Tree	Easy	12.5%
1943	Describe the Painting	Medium	12.5%
984	String Without AAA or BBB String	Medium	12.5%
2672	Number of Adjacent Elements With the Same Color Math	Medium	12.5%
3206	Alternating Groups I	Easy	12.5%
2426	Number of Pairs Satisfying Inequality Math	Hard	12.5%
488	Zuma Game	Hard	12.5%
2570	Merge Two 2D Arrays by Summing Values Array	Easy	12.5%
3050	Pizza Toppings Cost Analysis	Medium	12.5%
1865	Finding Pairs With a Certain Sum	Medium	12.5%
282	Expression Add Operators	Hard	12.5%
2338	Count the Number of Ideal Arrays ArrayMath	Hard	12.5%
2302	Count Subarrays With Score Less Than K Array	Hard	12.5%
1991	Find the Middle Index in Array Array	Easy	12.5%
401	Binary Watch	Easy	12.5%
2071	Maximum Number of Tasks You Can Assign Math	Hard	12.5%
838	Push Dominoes	Medium	12.5%
1007	Minimum Domino Rotations For Equal Row	Medium	12.5%
308	Range Sum Query 2D - Mutable	Medium	12.5%
2291	Maximum Profit From Trading Stocks	Medium	12.5%
3342	Find Minimum Time to Reach Last Room II	Medium	12.5%
2918	Minimum Equal Sum of Two Arrays After Replacing Zeros Array	Medium	12.5%
1864	Minimum Number of Swaps to Make the Binary String Alternating StringMath	Medium	12.5%
3335	Total Characters in String After Transformations I String	Medium	12.5%
3273	Minimum Amount of Damage Dealt to Bob	Hard	12.5%
1931	Painting a Grid With Three Different Colors	Hard	12.5%
434	Number of Segments in a String StringMath	Easy	12.5%
3355	Zero Array Transformation I Array	Medium	12.5%
2481	Minimum Cuts to Divide a Circle	Easy	12.5%
3426	Manhattan Distances of All Arrangements of Pieces	Hard	12.5%
2550	Count Collisions of Monkeys on a Polygon	Medium	12.5%
3424	Minimum Cost to Make Arrays Identical Array	Medium	12.5%
2894	Divisible and Non-divisible Sums Difference	Easy	12.5%
397	Integer Replacement Math	Medium	12.5%
2815	Max Pair Sum in an Array Array	Easy	12.5%
1691	Maximum Height by Stacking Cuboids Stack/Queue	Hard	12.5%
2359	Find Closest Node to Given Two Nodes Linked List	Medium	12.5%
1240	Tiling a Rectangle with the Fewest Squares	Hard	12.5%
1061	Lexicographically Smallest Equivalent String StringGraph	Medium	12.5%
3403	Find the Lexicographically Largest String From the Box I StringGraph	Medium	12.5%
3388	Count Beautiful Splits in an Array Array	Medium	12.5%
298	Binary Tree Longest Consecutive Sequence Tree	Medium	12.5%
2873	Maximum Value of an Ordered Triplet I	Easy	12.5%
637	Average of Levels in Binary Tree Tree	Easy	12.5%
3442	Maximum Difference Between Even and Odd Frequency I	Easy	12.5%
3362	Zero Array Transformation III Array	Medium	12.5%
3445	Maximum Difference Between Even and Odd Frequency II	Hard	12.5%
3423	Maximum Difference Between Adjacent Elements in a Circular Array Array	Easy	12.5%
1432	Max Difference You Can Get From Changing an Integer Math	Medium	12.5%
2016	Maximum Difference Between Increasing Elements	Easy	12.5%
3214	Year on Year Growth Rate	Hard	12.5%
3405	Count the Number of Arrays with K Matching Adjacent Elements ArrayMath	Hard	12.5%
892	Surface Area of 3D Shapes	Easy	12.5%
1941	Check if All Characters Have Equal Number of Occurrences Math	Easy	12.5%
2200	Find All K-Distant Indices in an Array Array	Easy	12.5%
1893	Check if All the Integers in a Range Are Covered Math	Easy	12.5%
2427	Number of Common Factors Math	Easy	12.5%
2040	Kth Smallest Product of Two Sorted Arrays Array	Hard	12.5%
1198	Find Smallest Common Element in All Rows	Medium	12.5%
2265	Count Nodes Equal to Average of Subtree TreeLinked List	Medium	12.5%
2500	Delete Greatest Value in Each Row	Easy	12.5%
2311	Longest Binary Subsequence Less Than or Equal to K String	Medium	12.5%
783	Minimum Distance Between BST Nodes TreeLinked List	Easy	12.5%
2014	Longest Subsequence Repeated k Times String	Hard	12.5%
1928	Minimum Cost to Reach Destination in Time	Hard	12.5%
2187	Minimum Time to Complete Trips	Medium	12.5%
3330	Find the Original Typed String I String	Easy	12.5%
3333	Find the Original Typed String II String	Hard	12.5%
1763	Longest Nice Substring StringTree	Easy	12.5%
3307	Find the K-th Character in String Game II String	Hard	12.5%
3598	Longest Common Prefix Between Adjacent Strings After Removals StringDP	Medium	12.5%
1217	Minimum Cost to Move Chips to The Same Position	Easy	12.5%
821	Shortest Distance to a Character	Easy	12.5%
3439	Reschedule Meetings for Maximum Free Time I	Medium	12.5%
305	Number of Islands II GraphMath	Hard	12.5%
1643	Kth Smallest Instructions	Hard	12.5%
3440	Reschedule Meetings for Maximum Free Time II	Medium	12.5%
858	Mirror Reflection	Medium	12.5%
1900	The Earliest and Latest Rounds Where Players Compete	Hard	12.5%
2001	Number of Pairs of Interchangeable Rectangles Math	Medium	12.5%
2779	Maximum Beauty of an Array After Applying Operation Array	Medium	12.5%
741	Cherry Pickup	Hard	12.5%
1667	Fix Names in a Table	Easy	12.5%
2571	Minimum Operations to Reduce an Integer to 0 Math	Medium	12.5%
924	Minimize Malware Spread	Hard	12.5%
3456	Find Special Substring of Length K StringTree	Easy	12.5%
512	Game Play Analysis II	Easy	12.5%
492	Construct the Rectangle	Easy	12.5%
1957	Delete Characters to Make Fancy String String	Easy	12.5%
1970	Last Day Where You Can Still Cross	Hard	12.5%
2596	Check Knight Tour Configuration	Medium	12.5%
3507	Minimum Pair Removal to Sort Array I Array	Easy	12.5%
3487	Maximum Unique Subarray Sum After Deletion Array	Easy	12.5%
1306	Jump Game III	Medium	12.5%
3340	Check Balanced String String	Easy	12.5%
2210	Count Hills and Valleys in an Array Array	Easy	12.5%
3480	Maximize Subarrays After Removing One Conflicting Pair Array	Hard	12.5%
2771	Longest Non-decreasing Subarray From Two Arrays Array	Medium	12.5%
1610	Maximum Number of Visible Points Math	Hard	12.5%
2119	A Number After a Double Reversal Math	Easy	12.5%
3357	Minimize the Maximum Adjacent Element Difference	Hard	12.5%
559	Maximum Depth of N-ary Tree Tree	Easy	12.5%
2561	Rearranging Fruits	Hard	12.5%
2106	Maximum Fruits Harvested After at Most K Steps	Hard	12.5%
3638	Maximum Balanced Shipments	Medium	12.5%
285	Inorder Successor in BST Tree	Medium	12.5%
3002	Maximum Size of a Set After Removals	Medium	12.5%
3477	Fruits Into Baskets II	Easy	12.5%
1527	Patients With a Condition	Easy	12.5%
3479	Fruits Into Baskets III	Medium	12.5%
2566	Maximum Difference by Remapping a Digit Math	Easy	12.5%
2438	Range Product Queries of Powers Math	Medium	12.5%
223	Rectangle Area	Medium	12.5%
2787	Ways to Express an Integer as Sum of Powers Math	Medium	12.5%
3482	Analyze Organization Hierarchy	Hard	12.5%
3542	Minimum Operations to Convert All Elements to Zero	Medium	12.5%
1370	Increasing Decreasing String String	Easy	12.5%
473	Matchsticks to Square	Medium	12.5%
3438	Find Valid Pair of Adjacent Digits in String StringMath	Easy	12.5%
1394	Find Lucky Integer in an Array ArrayMath	Easy	12.5%
2735	Collecting Chocolates	Medium	12.5%
940	Distinct Subsequences II String	Hard	12.5%
1504	Count Submatrices With All Ones	Medium	12.5%
3195	Find the Minimum Area to Cover All Ones I	Medium	12.5%
1861	Rotating the Box	Medium	12.5%
1639	Number of Ways to Form a Target String Given a Dictionary StringMath	Hard	12.5%
1907	Count Salary Categories	Medium	12.5%
3446	Sort Matrix by Diagonals Array	Medium	12.5%
1836	Remove Duplicates From an Unsorted Linked List Linked List	Medium	12.5%
3021	Alice and Bob Playing Flower Game	Medium	12.5%
3669	Balanced K-Factor Decomposition	Medium	12.5%
1266	Minimum Time Visiting All Points	Easy	12.5%
3666	Minimum Operations to Equalize Binary String String	Hard	12.5%
546	Remove Boxes	Hard	12.5%
3025	Find the Number of Ways to Place People I Math	Medium	12.5%
1297	Maximum Number of Occurrences of a Substring StringTreeMath	Medium	12.5%
3516	Find Closest Person	Easy	12.5%
3260	Find the Largest Palindrome Divisible by K String	Hard	12.5%
2749	Minimum Operations to Make the Integer Zero Math	Medium	12.5%
1317	Convert Integer to the Sum of Two No-Zero Integers Math	Easy	12.5%
2890	Reshape Data: Melt	Easy	12.5%
2327	Number of People Aware of a Secret Math	Medium	12.5%
2545	Sort the Students by Their Kth Score	Medium	12.5%
1733	Minimum Number of People to Teach Math	Medium	12.5%
3541	Find Most Frequent Vowel and Consonant	Easy	12.5%
966	Vowel Spellchecker	Medium	12.5%
1935	Maximum Number of Words You Can Type Math	Easy	12.5%
3408	Design Task Manager	Medium	12.5%
929	Unique Email Addresses	Easy	12.5%
1201	Ugly Number III Math	Medium	12.5%
2114	Maximum Number of Words Found in Sentences Math	Easy	12.5%
2592	Maximize Greatness of an Array Array	Medium	12.5%
2544	Alternating Digit Sum Math	Easy	12.5%
2089	Find Target Indices After Sorting Array Array	Easy	12.5%
3100	Water Bottles II	Medium	12.5%
3297	Count Substrings That Can Be Rearranged to Contain a String I StringTree	Medium	12.5%
1203	Sort Items by Groups Respecting Dependencies	Hard	12.5%
3168	Minimum Number of Chairs in a Waiting Room Math	Easy	12.5%
3071	Minimum Operations to Write the Letter Y on a Grid	Medium	12.5%
825	Friends Of Appropriate Ages	Medium	12.5%
2320	Count Number of Ways to Place Houses Math	Medium	12.5%
1145	Binary Tree Coloring Game Tree	Medium	12.5%
3494	Find the Minimum Amount of Time to Brew Potions	Medium	12.5%
3147	Taking Maximum Energy From the Mystic Dungeon	Medium	12.5%
3186	Maximum Total Damage With Spell Casting	Medium	12.5%
3664	Two-Letter Card Game	Medium	12.5%
444	Sequence Reconstruction	Medium	12.5%
1881	Maximum Value after Insertion	Medium	12.5%
2598	Smallest Missing Non-negative Integer After Operations Math	Medium	12.5%
1948	Delete Duplicate Folders in System	Hard	12.5%
3397	Maximum Number of Distinct Elements After Operations Math	Medium	12.5%
3720	Lexicographically Smallest Permutation Greater Than Target Graph	Medium	12.5%
2389	Longest Subsequence With Limited Sum String	Easy	12.5%
3347	Maximum Frequency of an Element After Performing Operations II	Hard	12.5%
3346	Maximum Frequency of an Element After Performing Operations I	Medium	12.5%
3715	Sum of Perfect Square Ancestors	Hard	12.5%
1446	Consecutive Characters	Easy	12.5%
491	Non-decreasing Subsequences String	Medium	12.5%
3354	Make Array Elements Equal to Zero Array	Easy	12.5%
3728	Stable Subarrays With Equal Boundary and Interior Sum Array	Medium	12.5%
3370	Smallest Number With All Set Bits Math	Easy	12.5%
2421	Number of Good Paths Math	Hard	12.5%
3289	The Two Sneaky Numbers of Digitville Math	Easy	12.5%
3428	Maximum and Minimum Sums of at Most Size K Subsequences String	Medium	12.5%
2257	Count Unguarded Cells in the Grid	Medium	12.5%
1578	Minimum Time to Make Rope Colorful	Medium	12.5%
3318	Find X-Sum of All K-Long Subarrays I Array	Easy	12.5%
3517	Smallest Palindromic Rearrangement I	Medium	12.5%
3573	Best Time to Buy and Sell Stock V	Medium	12.5%
3607	Power Grid Maintenance Math	Medium	12.5%
2528	Maximize the Minimum Powered City Math	Hard	12.5%
280	Wiggle Sort	Medium	12.5%
2169	Count Operations to Obtain Zero	Easy	12.5%
2654	Minimum Number of Operations to Make All Array Elements Equal to 1 ArrayMath	Medium	12.5%
3228	Maximum Number of Operations to Move Ones to the End Math	Medium	12.5%
411	Minimum Unique Word Abbreviation	Hard	12.5%
757	Set Intersection Size At Least Two	Hard	12.5%
3190	Find Minimum Operations to Make All Elements Divisible by Three	Easy	12.5%
3608	Minimum Time for K Connected Components	Medium	12.5%
1015	Smallest Integer Divisible by K Math	Medium	12.5%
2435	Paths in Matrix Whose Sum Is Divisible by K Array	Hard	12.5%
1776	Car Fleet II	Hard	12.5%
3381	Maximum Subarray Sum With Length Divisible by K Array	Medium	12.5%
2141	Maximum Running Time of N Computers	Hard	12.5%
1551	Minimum Operations to Make Array Equal Array	Medium	12.5%
3432	Count Partitions with Even Sum Difference DP	Easy	12.5%
3578	Count Partitions With Max-Min Difference at Most K DP	Medium	12.5%
1006	Clumsy Factorial	Medium	12.5%
3243	Shortest Distance After Road Addition Queries I	Medium	12.5%
1822	Sign of the Product of an Array Array	Easy	12.5%
3512	Minimum Operations to Make Array Sum Divisible by K Array	Easy	12.5%
2520	Count the Digits That Divide a Number Math	Easy	12.5%
3577	Count the Number of Computer Unlocking Permutations Math	Medium	12.5%
2562	Find the Array Concatenation Value Array	Easy	12.5%
1018	Binary Prefix Divisible By 5	Easy	12.5%
1993	Operations on Tree Tree	Medium	12.5%
1399	Count Largest Group	Easy	12.5%
3743	Maximize Cyclic Partition Score DP	Hard	12.5%
3508	Implement Router	Medium	12.5%
3652	Best Time to Buy and Sell Stock using Strategy	Medium	12.5%
2906	Construct Product Matrix Array	Medium	12.5%
955	Delete Columns to Make Sorted II	Medium	12.5%
598	Range Addition II	Easy	12.5%
256	Paint House	Medium	12.5%
2483	Minimum Penalty for a Shop	Medium	12.5%
1013	Partition Array Into Three Parts With Equal Sum ArrayDP	Easy	12.5%
474	Ones and Zeroes	Medium	12.5%
960	Delete Columns to Make Sorted III	Hard	12.5%
756	Pyramid Transition Matrix Array	Medium	12.5%
961	N-Repeated Element in Size 2N Array Array	Easy	12.5%
1411	Number of Ways to Paint N × 3 Grid Math	Hard	12.5%
1390	Four Divisors	Medium	12.5%
1380	Lucky Numbers in a Matrix ArrayMath	Easy	12.5%
311	Sparse Matrix Multiplication Array	Medium	12.5%
865	Smallest Subtree with all the Deepest Nodes TreeLinked List	Medium	12.5%
1729	Find Followers Count	Easy	12.5%
391	Perfect Rectangle	Hard	12.5%
1743	Restore the Array From Adjacent Pairs Array	Medium	12.5%
2943	Maximize Area of Square Hole in Grid	Medium	12.5%
2007	Find Original Array From Doubled Array Array	Medium	12.5%
1513	Number of Substrings With Only 1s StringTreeMath	Medium	12.5%
483	Smallest Good Base	Hard	12.5%
3314	Construct the Minimum Bitwise Array I Array	Easy	12.5%
3315	Construct the Minimum Bitwise Array II Array	Medium	12.5%
805	Split Array With Same Average Array	Hard	12.5%
2637	Promise Time Limit	Medium	12.5%
3510	Minimum Pair Removal to Sort Array II Array	Hard	12.5%
3780	Maximum Sum of Three Numbers Divisible by Three Math	Medium	12.5%
1877	Minimize Maximum Pair Sum in Array Array	Medium	12.5%
665	Non-decreasing Array Array	Medium	12.5%
1804	Implement Trie II (Prefix Tree) Tree	Medium	12.5%
3650	Minimum Cost Path with Edge Reversals	Medium	12.5%
3651	Minimum Cost Path with Teleportations	Hard	12.5%
2513	Minimize the Maximum of Two Arrays Array	Medium	12.5%
1413	Minimum Value to Get Positive Step by Step Sum	Easy	12.5%
2843	Count Symmetric Integers Math	Easy	12.5%
2498	Frog Jump II	Medium	12.5%
3013	Divide an Array Into Subarrays With Minimum Cost II Array	Hard	12.5%
3484	Design Spreadsheet	Medium	12.5%
565	Array Nesting Array	Medium	12.5%
600	Non-negative Integers without Consecutive Ones Math	Hard	12.5%
3379	Transformed Array Array	Easy	12.5%
363	Max Sum of Rectangle No Larger Than K	Hard	12.5%
923	3Sum With Multiplicity	Medium	12.5%
1979	Find Greatest Common Divisor of Array Array	Easy	12.5%
3227	Vowels Game in a String String	Medium	12.5%
1895	Largest Magic Square	Medium	12.5%
2457	Minimum Addition to Make Integer Beautiful Math	Medium	12.5%
2383	Minimum Hours of Training to Win a Competition	Easy	12.5%
3028	Ant on the Boundary	Easy	12.5%
2503	Maximum Number of Points From Grid Queries Math	Hard	12.5%
3719	Longest Balanced Subarray I Array	Medium	12.5%
2858	Minimum Edge Reversals So Every Node Is Reachable Linked List	Hard	12.5%
530	Minimum Absolute Difference in BST Tree	Easy	12.5%
3721	Longest Balanced Subarray II Array	Hard	12.5%
3713	Longest Balanced Substring I StringTree	Medium	12.5%
3714	Longest Balanced Substring II StringTree	Medium	12.5%
3796	Find Maximum Value in a Constrained Sequence	Medium	12.5%
799	Champagne Tower	Medium	12.5%
804	Unique Morse Code Words	Easy	12.5%
687	Longest Univalue Path	Medium	12.5%
2808	Minimum Seconds to Equalize a Circular Array Array	Medium	12.5%
2860	Happy Students	Medium	12.5%
693	Binary Number with Alternating Bits Math	Easy	12.5%
988	Smallest String Starting From Leaf String	Medium	12.5%
586	Customer Placing the Largest Number of Orders Math	Easy	12.5%
476	Number Complement Math	Easy	12.5%
868	Binary Gap	Easy	12.5%
1461	Check If a String Contains All Binary Codes of Size K String	Medium	12.5%
2131	Longest Palindrome by Concatenating Two Letter Words String	Medium	12.5%
990	Satisfiability of Equality Equations	Medium	12.5%
859	Buddy Strings String	Easy	12.5%
2785	Sort Vowels in a String String	Medium	12.5%
1536	Minimum Swaps to Arrange a Binary Grid	Medium	12.5%
2788	Split Strings by Separator String	Easy	12.5%
1582	Special Positions in a Binary Matrix Array	Easy	12.5%
956	Tallest Billboard	Hard	12.5%
527	Word Abbreviation	Hard	12.5%
3521	Find Product Recommendation Pairs	Medium	12.5%
569	Median Employee Salary Heap	Hard	12.5%
1758	Minimum Changes To Make Alternating Binary String String	Easy	12.5%
1784	Check if Binary String Has at Most One Segment of Ones String	Easy	12.5%
1888	Minimum Number of Flips to Make the Binary String Alternating StringMath	Medium	12.5%
1980	Find Unique Binary String String	Medium	12.5%
1228	Missing Number In Arithmetic Progression Math	Easy	12.5%
3129	Find All Possible Stable Binary Arrays I Array	Medium	12.5%
3795	Minimum Subarray Length With Distinct Sum At Least K Array	Medium	12.5%
1932	Merge BSTs to Create Single BST Tree	Hard	12.5%
3130	Find All Possible Stable Binary Arrays II Array	Hard	12.5%
1009	Complement of Base 10 Integer Math	Easy	12.5%
3600	Maximize Spanning Tree Stability with Upgrades Tree	Hard	12.5%
3296	Minimum Number of Seconds to Make Mountain Height Zero Math	Medium	12.5%
3427	Sum of Variable Length Subarrays Array	Easy	12.5%
1622	Fancy Sequence	Hard	12.5%
1878	Get Biggest Three Rhombus Sums in a Grid	Medium	12.5%
1953	Maximum Number of Weeks for Which You Can Work Math	Medium	12.5%
1727	Largest Submatrix With Rearrangements Array	Medium	12.5%
2568	Minimum Impossible OR	Medium	12.5%
3567	Minimum Absolute Difference in Sliding Submatrix Array	Medium	12.5%
3552	Grid Teleportation Traversal	Medium	12.5%
1594	Maximum Non Negative Product in a Matrix Array	Medium	12.5%
1693	Daily Leads and Partners	Easy	12.5%
855	Exam Room	Medium	12.5%
1711	Count Good Meals	Medium	12.5%
3546	Equal Sum Grid Partition I DP	Medium	12.5%
3212	Count Submatrices With Equal Frequency of X and Y	Medium	12.5%
1912	Design Movie Rental System	Hard	12.5%
2946	Matrix Similarity After Cyclic Shifts Array	Easy	12.5%
2723	Add Two Promises	Easy	12.5%
2840	Check if Strings Can be Made Equal With Operations II String	Medium	12.5%
3474	Lexicographically Smallest Generated String StringGraph	Hard	12.5%
3418	Maximum Amount of Money Robot Can Earn	Medium	12.5%
877	Stone Game	Medium	12.5%
3661	Maximum Walls Destroyed by Robots	Hard	12.5%
3828	Final Element After Subarray Deletions Array	Medium	12.5%
2039	The Time When the Network Becomes Idle Graph	Medium	12.5%
1236	Web Crawler	Medium	12.5%
3069	Distribute Elements Into Two Arrays I Array	Easy	12.5%
3653	XOR After Range Multiplication Queries I	Medium	12.5%
3655	XOR After Range Multiplication Queries II	Hard	12.5%
3740	Minimum Distance Between Three Equal Elements I	Easy	12.5%
2384	Largest Palindromic Number Math	Medium	12.5%
3741	Minimum Distance Between Three Equal Elements II	Medium	12.5%
2344	Minimum Deletions to Make Array Divisible Array	Hard	12.5%
3493	Properties Graph Graph	Medium	12.5%
3266	Final Array State After K Multiplication Operations II Array	Hard	12.5%
2448	Minimum Cost to Make Array Equal Array	Hard	12.5%
501	Find Mode in Binary Search Tree TreeBinary Search	Easy	12.5%
917	Reverse Only Letters	Easy	12.5%
2463	Minimum Total Distance Traveled	Hard	12.5%
2024	Maximize the Confusion of an Exam	Medium	12.5%
2515	Shortest Distance to Target String in a Circular Array ArrayString	Easy	12.5%
3488	Closest Equal Element Queries	Medium	12.5%
1281	Subtract the Product and Sum of Digits of an Integer Math	Easy	12.5%
3761	Minimum Absolute Distance Between Mirror Pairs	Medium	12.5%
2078	Two Furthest Houses With Different Colors	Easy	12.5%
1857	Largest Color Value in a Directed Graph Graph	Hard	12.5%
2452	Words Within Two Edits of Dictionary	Medium	12.5%
2615	Sum of Distances	Medium	12.5%
1564	Put Boxes Into the Warehouse I	Medium	12.5%
2033	Minimum Operations to Make a Uni-Value Grid	Medium	12.5%
2470	Number of Subarrays With LCM Equal to K ArrayMath	Medium	12.5%
3225	Maximum Score From Grid Operations	Hard	12.5%
3857	Minimum Cost to Split into Ones	Medium	12.5%
2661	First Completely Painted Row or Column	Medium	12.5%
861	Score After Flipping Matrix Array	Medium	12.5%
1696	Jump Game VI	Medium	12.5%
1206	Design Skiplist	Hard	12.5%
3660	Jump Game IX	Medium	12.5%
3629	Minimum Jumps to Reach End via Prime Teleportation Math	Medium	12.5%
1914	Cyclically Rotating a Grid	Medium	12.5%
2770	Maximum Number of Jumps to Reach the Last Index Math	Medium	12.5%
1665	Minimum Initial Energy to Finish Tasks	Hard	12.5%
1674	Minimum Moves to Make Array Complementary Array	Medium	12.5%
3928	Minimum Cost to Buy Apples II	Hard	12.5%
566	Reshape the Matrix Array	Easy	12.5%
1494	Parallel Courses II	Hard	12.5%
1151	Minimum Swaps to Group All 1's Together	Medium	12.5%
1340	Jump Game V	Hard	12.5%
969	Pancake Sorting	Medium	12.5%
2057	Smallest Index With Equal Value	Easy	12.5%
3093	Longest Common Suffix Queries DP	Hard	12.5%
1945	Sum of Digits of String After Convert StringMath	Easy	12.5%
2144	Minimum Cost of Buying Candies With Discount	Easy	12.5%
975	Odd Even Jump	Hard	12.5%
2974	Minimum Number Game Math	Easy	12.5%
854	K-Similar Strings String	Hard	12.5%
3633	Earliest Finish Time for Land and Water Rides I	Easy	12.5%
3635	Earliest Finish Time for Land and Water Rides II	Medium	12.5%
551	Student Attendance Record I	Easy	12.5%
3751	Total Waviness of Numbers in Range I Math	Medium	12.5%
3753	Total Waviness of Numbers in Range II Math	Hard	12.5%
2574	Left and Right Sum Differences	Easy	12.5%
2670	Find the Distinct Difference Array Array	Easy	12.5%
3689	Maximum Total Subarray Value I Array	Medium	12.5%
948	Bag of Tokens	Medium	12.5%
823	Binary Trees With Factors Tree	Medium	12.5%
856	Score of Parentheses	Medium	12.5%
3691	Maximum Total Subarray Value II Array	Hard	12.5%
3558	Number of Ways to Assign Edge Weights I Math	Medium	12.5%
1978	Employees Whose Manager Left the Company	Easy	12.5%
1441	Build an Array With Stack Operations ArrayStack/Queue	Medium	12.5%
3412	Find Mirror Score of a String String	Medium	12.5%
668	Kth Smallest Number in Multiplication Table Math	Hard	12.5%
3559	Number of Ways to Assign Edge Weights II Math	Hard	12.5%
3961	Maximize Sum of Device Ratings	Medium	12.5%
3469	Find Minimum Cost to Remove Array Elements Array	Medium	12.5%
3614	Process String with Special Operations II String	Hard	12.5%
1840	Maximum Building Height	Hard	12.5%
1005	Maximize Sum Of Array After K Negations Array	Easy	12.5%
1189	Maximum Number of Balloons Math	Easy	12.5%
3699	Number of ZigZag Arrays I ArrayMath	Hard	12.5%
1987	Number of Unique Good Subsequences StringMath	Hard	12.5%
3700	Number of ZigZag Arrays II ArrayMath	Hard	12.5%
2603	Collect Coins in a Tree Tree	Hard	12.5%
3737	Count Subarrays With Majority Element I Array	Medium	12.5%
914	X of a Kind in a Deck of Cards	Easy	12.5%
1972	First and Last Call On the Same Day	Hard	12.5%
3901	Good Subsequence Queries String	Hard	12.5%
3000	Maximum Area of Longest Diagonal Rectangle	Easy	12.5%
3739	Count Subarrays With Majority Element II Array	Hard	12.5%
357	Count Numbers with Unique Digits Math	Medium	12.5%
1797	Design Authentication Manager	Medium	12.5%
1967	Number of Strings That Appear as Substrings in Word StringTreeMath	Easy	12.5%
2812	Find the Safest Path in a Grid	Medium	12.5%
1703	Minimum Adjacent Swaps for K Consecutive Ones	Hard	12.5%
3620	Network Recovery Pathways Graph	Hard	12.5%
639	Decode Ways II	Hard	12.5%
1579	Remove Max Number of Edges to Keep Graph Fully Traversable GraphMath	Hard	12.5%
1184	Distance Between Bus Stops	Easy	12.5%
1301	Number of Paths with Max Score Math	Hard	12.5%
1905	Count Sub Islands Graph	Medium	12.5%
864	Shortest Path to Get All Keys	Hard	12.5%
2271	Maximum White Tiles Covered by a Carpet	Medium	12.5%
376	Wiggle Subsequence String	Medium	12.5%
3756	Concatenate Non-Zero Digits and Multiply by Sum II Math	Medium	12.5%
818	Race Car	Hard	12.5%
3754	Concatenate Non-Zero Digits and Multiply by Sum I Math	Easy	12.5%
925	Long Pressed Name	Easy	12.5%
1537	Get the Maximum Score	Hard	12.5%
3532	Path Existence Queries in a Graph I Graph	Medium	12.5%
2828	Check if a String Is an Acronym of Words String	Easy	12.5%
2529	Maximum Count of Positive Integer and Negative Integer Math	Easy	12.5%
3534	Path Existence Queries in a Graph II Graph	Hard	12.5%