LeetCode The Hard Way

PhonePe

92 problems

ProblemDifficultyFrequency Topics
1. Two SumEasy52.8%
ArrayHash Table
329. Longest Increasing Path in a MatrixHard52.8%
ArrayDynamic ProgrammingDepth-First SearchBreadth-First SearchGraph TheoryTopological SortMemoizationMatrixDirected Acyclic Graph
17. Letter Combinations of a Phone NumberMedium52.8%
Hash TableStringBacktracking
200. Number of IslandsMedium52.8%
ArrayDepth-First SearchBreadth-First SearchUnion-FindMatrix
54. Spiral MatrixMedium52.8%
ArrayMatrixSimulation
2385. Amount of Time for Binary Tree to Be InfectedMedium52.8%
Hash TableTreeDepth-First SearchBreadth-First SearchBinary Tree
Decode StringMedium52.8%
StringStackRecursion
862. Shortest Subarray with Sum at Least KHard52.8%
ArrayBinary SearchQueueSliding WindowHeap (Priority Queue)Prefix SumMonotonic Queue
Frog JumpHard52.8%
ArrayDynamic Programming
Predict the WinnerMedium52.8%
ArrayMathDynamic ProgrammingRecursionMinimaxGame TheoryZero-Sum Game
1443. Minimum Time to Collect All Apples in a TreeMedium52.8%
Hash TableTreeDepth-First SearchBreadth-First SearchDP on Trees
803. Bricks Falling When HitHard52.8%
ArrayUnion-FindMatrix
1537. Get the Maximum ScoreHard52.8%
ArrayTwo PointersDynamic ProgrammingGreedy
91. Decode WaysMedium52.8%
StringDynamic Programming
297. Serialize and Deserialize Binary TreeHard52.8%
StringTreeDepth-First SearchBreadth-First SearchDesignBinary Tree
2472. Maximum Number of Non-overlapping Palindrome SubstringsHard52.8%
Two PointersStringDynamic ProgrammingGreedy
2101. Detonate the Maximum BombsMedium52.8%
ArrayMathDepth-First SearchBreadth-First SearchGraph TheoryGeometry
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