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12 LeetCode interview questions

Difficulty Distribution

Easy

2

17%

Medium

7

58%

Hard

3

25%

Top Topics

Hash Table(6)String(6)Array(5)Design(3)Sorting(2)Math(2)Randomized(2)Trie(1)Two Pointers(1)Stack(1)

All Questions

Title	Difficulty	Acceptance	Frequency	Topics
Insert Delete GetRandom O(1)	Medium	55.3%	100.0%	ArrayHash TableMath+2
Shortest Uncommon Substring in an Array	Medium	50.0%	87.5%	ArrayHash TableString+1
Group Anagrams	Medium	72.2%	75.0%	ArrayHash TableString+1
Insert Delete GetRandom O(1) - Duplicates allowed	Hard	36.4%	75.0%	ArrayHash TableMath+2
Parse Lisp Expression	Hard	53.5%	75.0%	Hash TableStringStack+1
Design Hit Counter	Medium	69.6%	62.5%
String Compression	Medium	59.5%	62.5%	Two PointersString
Valid Anagram	Easy	67.8%	62.5%	Hash TableStringSorting
String Compression III	Medium	67.0%	50.0%	String
Coin Change	Medium	47.9%	50.0%	ArrayDynamic ProgrammingBreadth-First Search
Number of Recent Calls	Easy	78.1%	50.0%	DesignQueueData Stream
Optimal Account Balancing	Hard	50.3%	50.0%

Showing 12 of 12 questions