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DifficultyTopic36 of 36
No.ProblemDifficultyFrequency
1Two Sum
Sliding Window
Easy
100.0%
2356Number of Unique Subjects Taught by Each Teacher
Math
Easy
87.5%
3498Reverse Degree of a String
String
Easy
87.5%
3005Count Elements With Maximum FrequencyEasy
75.0%
283Move ZeroesEasy
75.0%
9Palindrome Number
StringMath
Easy
62.5%
26Remove Duplicates from Sorted Array
Array
Easy
62.5%
121Best Time to Buy and Sell StockEasy
62.5%
189Rotate Array
Array
Medium
62.5%
14Longest Common Prefix
DP
Easy
62.5%
4Median of Two Sorted Arrays
ArrayHeap
Hard
62.5%
626Exchange SeatsMedium
62.5%
242Valid Anagram
String
Easy
62.5%
3Longest Substring Without Repeating Characters
StringTree
Medium
62.5%
34Find First and Last Position of Element in Sorted Array
Array
Medium
62.5%
21Merge Two Sorted ListsEasy
62.5%
28Find the Index of the First Occurrence in a String
String
Easy
62.5%
217Contains DuplicateEasy
62.5%
49Group Anagrams
String
Medium
62.5%
2Add Two Numbers
Math
Medium
50.0%
1405Longest Happy String
String
Medium
50.0%
42Trapping Rain WaterHard
50.0%
560Subarray Sum Equals K
Array
Medium
50.0%
322Coin Change
DP
Medium
50.0%
75Sort ColorsMedium
50.0%
7Reverse Integer
Math
Medium
50.0%
11Container With Most WaterMedium
50.0%
13Roman to Integer
Math
Easy
50.0%
176Second Highest SalaryMedium
50.0%
2677Chunk Array
Array
Easy
50.0%
66Plus OneEasy
50.0%
1877Minimize Maximum Pair Sum in Array
Array
Medium
50.0%
235Lowest Common Ancestor of a Binary Search Tree
TreeBinary Search
Medium
50.0%
349Intersection of Two Arrays
Array
Easy
50.0%
184SumMedium
50.0%
67Add BinaryEasy
50.0%