LeetCode The Hard Way

Tcs

264 problems

ProblemDifficultyFrequency Topics
1456. Maximum Number of Vowels in a Substring of Given LengthMedium27.1%
StringSliding Window
Next Greater Element IIMedium27.1%
ArrayStackMonotonic Stack
24. Swap Nodes in PairsMedium27.1%
Linked ListRecursion
3658. GCD of Odd and Even SumsEasy27.1%
MathNumber Theory
901. Online Stock SpanMedium27.1%
StackDesignMonotonic StackData Stream
Factorial Trailing ZeroesMedium27.1%
Math
645. Set MismatchEasy27.1%
ArrayHash TableBit ManipulationSorting
572. Subtree of Another TreeEasy27.1%
TreeDepth-First SearchString MatchingBinary TreeHash Function
Search in a Binary Search TreeEasy27.1%
TreeBinary Search TreeBinary Tree
881. Boats to Save PeopleMedium27.1%
ArrayTwo PointersGreedySortingTimsort
134. Gas StationMedium27.1%
ArrayGreedy
1806. Minimum Number of Operations to Reinitialize a PermutationMedium27.1%
ArrayMathSimulation
1464. Maximum Product of Two Elements in an ArrayEasy27.1%
ArraySortingHeap (Priority Queue)
2009. Minimum Number of Operations to Make Array ContinuousHard27.1%
ArrayHash TableBinary SearchSliding Window
Nim GameEasy27.1%
MathBrainteaserMinimaxGame TheoryNim GameImpartial Game
205. Isomorphic StringsEasy27.1%
Hash TableString
25. Reverse Nodes in k-GroupHard27.1%
Linked ListRecursion
733. Flood FillEasy27.1%
ArrayDepth-First SearchBreadth-First SearchMatrix
2965. Find Missing and Repeated ValuesEasy27.1%
ArrayHash TableMathMatrix
345. Reverse Vowels of a StringEasy27.1%
Two PointersString
1829. Maximum XOR for Each QueryMedium27.1%
ArrayBit ManipulationPrefix Sum
Search a 2D Matrix IIMedium27.1%
ArrayBinary SearchDivide and ConquerMatrix
349. Intersection of Two ArraysEasy27.1%
ArrayHash TableTwo PointersBinary SearchSorting
115. Distinct SubsequencesHard27.1%
StringDynamic Programming
36. Valid SudokuMedium27.1%
ArrayHash TableMatrix
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