LeetCode The Hard Way

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2324 problems

ProblemDifficultyFrequency Topics
433. Minimum Genetic MutationMedium18.2%
Hash TableStringBreadth-First SearchBidirectional Search
All O`one Data StructureHard18.2%
Hash TableLinked ListDesignDoubly-Linked List
1590. Make Sum Divisible by PMedium18.2%
ArrayHash TablePrefix Sum
856. Score of ParenthesesMedium18.2%
StringStackBracket Sequences
Maximum GapMedium18.2%
ArraySortingBucket SortRadix SortPigeonhole Principle
2210. Count Hills and Valleys in an ArrayEasy18.2%
Array
Combination Sum IIIMedium18.2%
ArrayBacktracking
1760. Minimum Limit of Balls in a BagMedium18.2%
ArrayBinary Search
Count Binary SubstringsEasy18.2%
Two PointersString
1749. Maximum Absolute Sum of Any SubarrayMedium18.2%
ArrayDynamic Programming
761. Special Binary StringHard18.2%
StringDivide and ConquerSorting
1534. Count Good TripletsEasy18.2%
ArrayEnumeration
976. Largest Perimeter TriangleEasy18.2%
ArrayMathGreedySortingQuicksortPolygons
3333. Find the Original Typed String IIHard18.2%
StringDynamic ProgrammingPrefix Sum
Game Play Analysis IEasy18.2%
Database
2438. Range Product Queries of PowersMedium18.2%
ArrayBit ManipulationPrefix Sum
3695. Maximize Alternating Sum Using SwapsHard18.2%
ArrayGreedyUnion-FindSorting
3698. Split Array With Minimum DifferenceMedium18.2%
ArrayPrefix Sum
2048. Next Greater Numerically Balanced NumberMedium18.2%
Hash TableMathBacktrackingCountingEnumeration
3014. Minimum Number of Pushes to Type Word IEasy18.2%
MathStringGreedy
3637. Trionic Array IEasy18.2%
Array
3858. Minimum Bitwise OR From GridMedium18.2%
ArrayGreedyBit ManipulationMatrix
2333. Minimum Sum of Squared DifferenceMedium18.2%
ArrayBinary SearchGreedySortingHeap (Priority Queue)
Bitwise AND of Numbers RangeMedium16.6%
Bit Manipulation
246. Strobogrammatic NumberEasy16.6%
Hash TableTwo PointersString
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