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DifficultyTopic31 of 31
No.ProblemDifficultyFrequency
1959Minimum Total Space Wasted With K Resizing OperationsMedium
100.0%
2538Difference Between Maximum and Minimum Price SumHard
100.0%
2572Count the Number of Square-Free Subsets
Math
Medium
100.0%
407Trapping Rain Water IIHard
100.0%
1938Maximum Genetic Difference QueryHard
87.5%
2473Minimum Cost to Buy ApplesMedium
87.5%
2479Maximum XOR of Two Non-Overlapping Subtrees
Tree
Hard
87.5%
2852Sum of Remoteness of All CellsMedium
87.5%
2874Maximum Value of an Ordered Triplet IIMedium
87.5%
2873Maximum Value of an Ordered Triplet IEasy
87.5%
1642Furthest Building You Can ReachMedium
87.5%
1222Queens That Can Attack the KingMedium
87.5%
1266Minimum Time Visiting All PointsEasy
87.5%
1787Make the XOR of All Segments Equal to ZeroHard
87.5%
1879Minimum XOR Sum of Two Arrays
Array
Hard
87.5%
2835Minimum Operations to Form Subsequence With Target Sum
String
Hard
87.5%
354Russian Doll EnvelopesHard
87.5%
3660Jump Game IXMedium
87.5%
42Trapping Rain WaterHard
75.0%
947Most Stones Removed with Same Row or ColumnMedium
75.0%
2382Maximum Segment Sum After RemovalsHard
62.5%
668Kth Smallest Number in Multiplication Table
Math
Hard
62.5%
2945Find Maximum Non-decreasing Array Length
Array
Hard
62.5%
3291Minimum Number of Valid Strings to Form Target I
StringMath
Medium
62.5%
70Climbing StairsEasy
62.5%
1376Time Needed to Inform All EmployeesMedium
50.0%
406Queue Reconstruction by Height
Stack/Queue
Medium
50.0%
1994The Number of Good Subsets
Math
Hard
50.0%
827Making A Large Island
Graph
Hard
50.0%
99Recover Binary Search Tree
TreeBinary Search
Medium
50.0%
53Maximum Subarray
Array
Medium
50.0%