1Longest Consecutive SequenceMediumArrayHash TableUnion-Find
Solve → 2Search in Rotated Sorted ArrayMediumArrayBinary Search
Solve → 3Trapping Rain WaterHardArrayTwo PointersDynamic Programming
Solve → 4Container With Most WaterMediumArrayTwo PointersGreedy
Solve → 5Minimize Maximum of ArrayMediumArrayBinary SearchDynamic Programming
Solve → 6Find Indices With Index and Value Difference IIMediumArrayTwo Pointers
Solve → 7Number of Unequal Triplets in ArrayEasyArrayHash TableSorting
Solve → 8Longest Nice SubarrayMediumArrayBit ManipulationSliding Window
Solve → 9Find Indices With Index and Value Difference IEasyArrayTwo Pointers
Solve → 10Two SumEasyArrayHash Table
Solve → 11Burst BalloonsHardArrayDynamic Programming
Solve → 12Car PoolingMediumArraySortingHeap (Priority Queue)
Solve → 13Find Indices With Index and Value Difference IEasyArrayTwo Pointers
Solve → 14Find Indices With Index and Value Difference IIMediumArrayTwo Pointers
Solve → 15Longest Nice SubarrayMediumArrayBit ManipulationSliding Window
Solve → 16Minimize Maximum of ArrayMediumArrayBinary SearchDynamic Programming
Solve → 17Number of Unequal Triplets in ArrayEasyArrayHash TableSorting
Solve → 18Maximum Transactions Without Negative BalanceMediumArrayGreedyHeap (Priority Queue)
Solve → 19Trapping Rain WaterHardArrayTwo PointersDynamic Programming
Solve → 20Search in Rotated Sorted ArrayMediumArrayBinary Search
Solve → 21Longest Consecutive SequenceMediumArrayHash TableUnion-Find
Solve → 22Container With Most WaterMediumArrayTwo PointersGreedy
Solve → 23Two SumEasyArrayHash Table
Solve → 24Search a 2D MatrixMediumArrayBinary SearchMatrix
Solve → 25Burst BalloonsHardArrayDynamic Programming
Solve → 26Car PoolingMediumArraySortingHeap (Priority Queue)
Solve → 27Find the Duplicate NumberMediumArrayTwo PointersBinary Search
Solve → 28Best Time to Buy and Sell StockEasyArrayDynamic Programming
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