Walmart Labs Interview Questions

143 of 143

No.	Problem	Difficulty	Frequency
1	Two Sum Sliding Window	Easy	100.0%
3	Longest Substring Without Repeating Characters StringTree	Medium	100.0%
20	Valid Parentheses Stack/Queue	Easy	100.0%
146	LRU Cache	Medium	100.0%
200	Number of Islands GraphMath	Medium	100.0%
22	Generate Parentheses	Medium	87.5%
33	Search in Rotated Sorted Array ArrayBinary Search	Medium	87.5%
42	Trapping Rain Water	Hard	87.5%
1977	Number of Ways to Separate Numbers Math	Hard	87.5%
49	Group Anagrams String	Medium	87.5%
56	Merge Intervals	Medium	87.5%
2072	The Winner University	Easy	87.5%
2179	Count Good Triplets in an Array Array	Hard	87.5%
2406	Divide Intervals Into Minimum Number of Groups Math	Medium	87.5%
2449	Minimum Number of Operations to Make Arrays Similar ArrayMath	Hard	87.5%
2541	Minimum Operations to Make Array Equal II Array	Medium	87.5%
2071	Maximum Number of Tasks You Can Assign Math	Hard	87.5%
876	Middle of the Linked List Linked List	Easy	87.5%
3005	Count Elements With Maximum Frequency	Easy	87.5%
3090	Maximum Length Substring With Two Occurrences StringTree	Easy	87.5%
1238	Circular Permutation in Binary Representation	Medium	87.5%
3179	Find the N-th Value After K Seconds	Medium	87.5%
1486	XOR Operation in an Array Array	Easy	87.5%
5	Longest Palindromic Substring StringTree	Medium	75.0%
11	Container With Most Water	Medium	75.0%
39	Combination Sum	Medium	75.0%
75	Sort Colors	Medium	75.0%
128	Longest Consecutive Sequence	Medium	75.0%
139	Word Break	Medium	75.0%
322	Coin Change DP	Medium	75.0%
716	Max Stack Stack/Queue	Hard	75.0%
300	Longest Increasing Subsequence String	Medium	75.0%
3696	Maximum Distance Between Unequal Words in Array I Array	Easy	75.0%
870	Advantage Shuffle	Medium	75.0%
4	Median of Two Sorted Arrays ArrayHeap	Hard	62.5%
14	Longest Common Prefix DP	Easy	62.5%
15	3Sum	Medium	62.5%
23	Merge k Sorted Lists	Hard	62.5%
36	Valid Sudoku	Medium	62.5%
53	Maximum Subarray Array	Medium	62.5%
54	Spiral Matrix Array	Medium	62.5%
103	Binary Tree Zigzag Level Order Traversal Tree	Medium	62.5%
121	Best Time to Buy and Sell Stock	Easy	62.5%
199	Binary Tree Right Side View Tree	Medium	62.5%
207	Course Schedule	Medium	62.5%
215	Kth Largest Element in an Array ArrayHeap	Medium	62.5%
283	Move Zeroes	Easy	62.5%
347	Top K Frequent Elements Heap	Medium	62.5%
387	First Unique Character in a String String	Easy	62.5%
460	LFU Cache	Hard	62.5%
560	Subarray Sum Equals K Array	Medium	62.5%
90	Subsets II	Medium	62.5%
6	Zigzag Conversion	Medium	62.5%
407	Trapping Rain Water II	Hard	62.5%
12	Integer to Roman Math	Medium	62.5%
647	Palindromic Substrings StringTree	Medium	62.5%
295	Find Median from Data Stream Heap	Hard	62.5%
362	Design Hit Counter	Medium	62.5%
994	Rotting Oranges	Medium	62.5%
498	Diagonal Traverse	Medium	62.5%
73	Set Matrix Zeroes Array	Medium	62.5%
1329	Sort the Matrix Diagonally Array	Medium	62.5%
106	Construct Binary Tree from Inorder and Postorder Traversal Tree	Medium	62.5%
567	Permutation in String String	Medium	62.5%
25	Reverse Nodes in k-Group Linked List	Hard	50.0%
41	First Missing Positive	Hard	50.0%
67	Add Binary	Easy	50.0%
74	Search a 2D Matrix Array	Medium	50.0%
76	Minimum Window Substring StringTreeSliding Window	Hard	50.0%
84	Largest Rectangle in Histogram	Hard	50.0%
91	Decode Ways	Medium	50.0%
155	Min Stack Stack/Queue	Medium	50.0%
189	Rotate Array Array	Medium	50.0%
198	House Robber	Medium	50.0%
44	Wildcard Matching	Hard	50.0%
739	Daily Temperatures	Medium	50.0%
57	Insert Interval	Medium	50.0%
2461	Maximum Sum of Distinct Subarrays With Length K Array	Medium	50.0%
1249	Minimum Remove to Make Valid Parentheses Stack/Queue	Medium	50.0%
120	Triangle	Medium	50.0%
153	Find Minimum in Rotated Sorted Array ArrayBinary Search	Medium	50.0%
490	The Maze	Medium	50.0%
1209	Remove All Adjacent Duplicates in String II String	Medium	50.0%
253	Meeting Rooms II	Medium	50.0%
19	Remove Nth Node From End of List Linked List	Medium	50.0%
125	Valid Palindrome String	Easy	50.0%
402	Remove K Digits Math	Medium	50.0%
556	Next Greater Element III	Medium	50.0%
31	Next Permutation	Medium	50.0%
50	Pow(x, n) Math	Medium	37.5%
79	Word Search	Medium	37.5%
116	Populating Next Right Pointers in Each Node Linked List	Medium	37.5%
138	Copy List with Random Pointer	Medium	37.5%
210	Course Schedule II	Medium	37.5%
238	Product of Array Except Self Array	Medium	37.5%
341	Flatten Nested List Iterator	Medium	37.5%
1143	Longest Common Subsequence StringDP	Medium	37.5%
451	Sort Characters By Frequency	Medium	37.5%
227	Basic Calculator II	Medium	37.5%
55	Jump Game	Medium	37.5%
525	Contiguous Array Array	Medium	37.5%
162	Find Peak Element Binary Search	Medium	37.5%
373	Find K Pairs with Smallest Sums	Medium	37.5%
665	Non-decreasing Array Array	Medium	37.5%
81	Search in Rotated Sorted Array II ArrayBinary Search	Medium	37.5%
7	Reverse Integer Math	Medium	37.5%
40	Combination Sum II	Medium	37.5%
730	Count Different Palindromic Subsequences String	Hard	37.5%
92	Reverse Linked List II Linked List	Medium	37.5%
152	Maximum Product Subarray Array	Medium	37.5%
2423	Remove Letter To Equalize Frequency	Easy	37.5%
1823	Find the Winner of the Circular Game	Medium	37.5%
735	Asteroid Collision	Medium	37.5%
78	Subsets	Medium	37.5%
543	Diameter of Binary Tree Tree	Easy	37.5%
305	Number of Islands II GraphMath	Hard	37.5%
13	Roman to Integer Math	Easy	37.5%
197	Rising Temperature	Easy	37.5%
1011	Capacity To Ship Packages Within D Days	Medium	37.5%
72	Edit Distance DP	Medium	37.5%
442	Find All Duplicates in an Array Array	Medium	37.5%
52	N-Queens II	Hard	37.5%
1122	Relative Sort Array Array	Easy	37.5%
694	Number of Distinct Islands GraphMath	Medium	37.5%
438	Find All Anagrams in a String String	Medium	37.5%
395	Longest Substring with At Least K Repeating Characters StringTree	Medium	37.5%
2402	Meeting Rooms III	Hard	37.5%
332	Reconstruct Itinerary	Hard	37.5%
135	Candy	Hard	37.5%
394	Decode String String	Medium	37.5%
1926	Nearest Exit from Entrance in Maze	Medium	37.5%
1642	Furthest Building You Can Reach	Medium	37.5%
26	Remove Duplicates from Sorted Array Array	Easy	37.5%
815	Bus Routes	Hard	37.5%
287	Find the Duplicate Number Math	Medium	37.5%
279	Perfect Squares	Medium	37.5%
713	Subarray Product Less Than K Array	Medium	37.5%
224	Basic Calculator	Hard	37.5%
697	Degree of an Array Array	Easy	37.5%
987	Vertical Order Traversal of a Binary Tree Tree	Hard	37.5%
239	Sliding Window Maximum Sliding Window	Hard	37.5%
787	Cheapest Flights Within K Stops Heap	Medium	37.5%
1200	Minimum Absolute Difference	Easy	37.5%