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DifficultyTopic15 of 15
No.ProblemDifficultyFrequency
845Longest Mountain in Array
Array
Medium
100.0%
1347Minimum Number of Steps to Make Two Strings Anagram
StringMath
Medium
100.0%
380Insert Delete GetRandom O(1)Medium
100.0%
76Minimum Window Substring
StringTreeSliding Window
Hard
87.5%
2472Maximum Number of Non-overlapping Palindrome Substrings
StringTreeMath
Hard
87.5%
347Top K Frequent Elements
Heap
Medium
87.5%
200Number of Islands
GraphMath
Medium
75.0%
735Asteroid CollisionMedium
75.0%
697Degree of an Array
Array
Easy
75.0%
146LRU CacheMedium
75.0%
23Merge k Sorted ListsHard
62.5%
1229Meeting SchedulerMedium
62.5%
2861Maximum Number of Alloys
Math
Medium
62.5%
127Word LadderHard
62.5%
68Text JustificationHard
62.5%