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DifficultyTopic23 of 23
No.ProblemDifficultyFrequency
4Median of Two Sorted Arrays
ArrayHeap
Hard
100.0%
631Design Excel Sum FormulaHard
75.0%
3484Design SpreadsheetMedium
75.0%
23Merge k Sorted ListsHard
75.0%
399Evaluate DivisionMedium
62.5%
1944Number of Visible People in a Queue
Stack/QueueMath
Hard
62.5%
21Merge Two Sorted ListsEasy
62.5%
1258Synonymous SentencesMedium
50.0%
1046Last Stone WeightEasy
50.0%
465Optimal Account BalancingHard
50.0%
721Accounts MergeMedium
50.0%
460LFU CacheHard
50.0%
3387Maximize Amount After Two Days of ConversionsMedium
50.0%
2939Maximum Xor ProductMedium
50.0%
1326Minimum Number of Taps to Open to Water a Garden
Math
Hard
50.0%
1396Design Underground SystemMedium
50.0%
347Top K Frequent Elements
Heap
Medium
50.0%
737Sentence Similarity IIMedium
50.0%
692Top K Frequent Words
Heap
Medium
50.0%
146LRU CacheMedium
50.0%
56Merge IntervalsMedium
50.0%
2296Design a Text EditorHard
50.0%
3Longest Substring Without Repeating Characters
StringTree
Medium
50.0%