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DifficultyTopic9 of 9
No.ProblemDifficultyFrequency
146LRU CacheMedium
100.0%
1209Remove All Adjacent Duplicates in String II
String
Medium
87.5%
14Longest Common Prefix
DP
Easy
87.5%
49Group Anagrams
String
Medium
87.5%
347Top K Frequent Elements
Heap
Medium
87.5%
56Merge IntervalsMedium
75.0%
383Ransom NoteEasy
75.0%
22Generate ParenthesesMedium
75.0%
253Meeting Rooms IIMedium
75.0%