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DifficultyTopic28 of 28
No.ProblemDifficultyFrequency
2931Maximum Spending After Buying ItemsHard
100.0%
2584Split the Array to Make Coprime Products
ArrayMath
Hard
100.0%
2505Bitwise OR of All Subsequence Sums
String
Medium
100.0%
2608Shortest Cycle in a Graph
GraphLinked List
Hard
100.0%
2147Number of Ways to Divide a Long Corridor
Math
Hard
100.0%
2145Count the Hidden SequencesMedium
87.5%
41First Missing PositiveHard
75.0%
200Number of Islands
GraphMath
Medium
75.0%
53Maximum Subarray
Array
Medium
75.0%
3Longest Substring Without Repeating Characters
StringTree
Medium
75.0%
540Single Element in a Sorted Array
Array
Medium
75.0%
218The Skyline ProblemHard
75.0%
626Exchange SeatsMedium
75.0%
153SumMedium
62.5%
460LFU CacheHard
62.5%
909Snakes and LaddersMedium
62.5%
260Single Number III
Math
Medium
62.5%
221Maximal SquareMedium
62.5%
205Isomorphic Strings
String
Easy
62.5%
207Course ScheduleMedium
62.5%
358Rearrange String k Distance Apart
String
Hard
62.5%
46PermutationsMedium
62.5%
283Move ZeroesEasy
62.5%
39Combination SumMedium
62.5%
240Search a 2D Matrix II
Array
Medium
62.5%
56Merge IntervalsMedium
62.5%
11Container With Most WaterMedium
62.5%
354Russian Doll EnvelopesHard
62.5%