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DifficultyTopic62 of 62
No.ProblemDifficultyFrequency
2034Stock Price FluctuationMedium
100.0%
1366Rank Teams by VotesMedium
100.0%
56Merge IntervalsMedium
87.5%
353Design Snake GameMedium
87.5%
432All O`one Data StructureHard
87.5%
2933High-Access EmployeesMedium
75.0%
253Meeting Rooms IIMedium
75.0%
236Lowest Common Ancestor of a Binary Tree
Tree
Medium
75.0%
68Text JustificationHard
62.5%
2959Number of Possible Sets of Closing Branches
Math
Hard
62.5%
2948Make Lexicographically Smallest Array by Swapping Elements
ArrayGraph
Medium
62.5%
2976Minimum Cost to Convert String I
String
Medium
62.5%
2977Minimum Cost to Convert String II
String
Hard
62.5%
3026Maximum Good Subarray Sum
Array
Medium
62.5%
1307Verbal Arithmetic PuzzleHard
62.5%
2598Smallest Missing Non-negative Integer After Operations
Math
Medium
62.5%
2577Minimum Time to Visit a Cell In a GridHard
62.5%
2975Maximum Square Area by Removing Fences From a FieldMedium
62.5%
3000Maximum Area of Longest Diagonal RectangleEasy
62.5%
79Word SearchMedium
62.5%
2639Find the Width of Columns of a GridEasy
62.5%
1676Lowest Common Ancestor of a Binary Tree IV
Tree
Medium
62.5%
49Group Anagrams
String
Medium
50.0%
1048Longest String Chain
String
Medium
50.0%
121Best Time to Buy and Sell StockEasy
50.0%
359Logger Rate LimiterEasy
50.0%
347Top K Frequent Elements
Heap
Medium
50.0%
128Longest Consecutive SequenceMedium
50.0%
605Can Place FlowersEasy
50.0%
354Russian Doll EnvelopesHard
50.0%
2039The Time When the Network Becomes Idle
Graph
Medium
50.0%
1Two Sum
Sliding Window
Easy
37.5%
3Longest Substring Without Repeating Characters
StringTree
Medium
37.5%
1166Design File SystemMedium
37.5%
300Longest Increasing Subsequence
String
Medium
37.5%
362Design Hit CounterMedium
37.5%
875Koko Eating BananasMedium
37.5%
658Find K Closest ElementsMedium
37.5%
45Jump Game IIMedium
37.5%
881Boats to Save PeopleMedium
37.5%
1010Pairs of Songs With Total Durations Divisible by 60Medium
37.5%
177Nth Highest SalaryMedium
37.5%
211Design Add and Search Words Data StructureMedium
37.5%
2559Count Vowel Strings in Ranges
String
Medium
37.5%
34Find First and Last Position of Element in Sorted Array
Array
Medium
37.5%
1650Lowest Common Ancestor of a Binary Tree III
Tree
Medium
37.5%
53Maximum Subarray
Array
Medium
37.5%
2353Design a Food Rating SystemMedium
37.5%
1970Last Day Where You Can Still CrossHard
37.5%
146LRU CacheMedium
37.5%
2484Count Palindromic Subsequences
String
Hard
37.5%
2561Rearranging FruitsHard
37.5%
1644Lowest Common Ancestor of a Binary Tree II
Tree
Medium
37.5%
1797Design Authentication ManagerMedium
37.5%
44Wildcard MatchingHard
37.5%
297Serialize and Deserialize Binary Tree
Tree
Hard
37.5%
31Next PermutationMedium
37.5%
3649Number of Perfect Pairs
Math
Medium
37.5%
2939Maximum Xor ProductMedium
37.5%
956Tallest BillboardHard
37.5%
3953Maximum Score with Co-Prime Element
Math
Hard
37.5%
122Best Time to Buy and Sell Stock IIMedium
37.5%