1Number of IslandsMediumArrayDepth-First SearchBreadth-First Search
Solve → 2Merge IntervalsMediumArraySorting
Solve → 3Encode and Decode StringsMediumArrayStringDesign
Solve → 4Number of IslandsMediumArrayDepth-First SearchBreadth-First Search
Solve → 5Squares of a Sorted ArrayEasyArrayTwo PointersSorting
Solve → 6Trapping Rain WaterHardArrayTwo PointersDynamic Programming
Solve → 7Number of IslandsMediumArrayDepth-First SearchBreadth-First Search
Solve → 8Encode and Decode StringsMediumArrayStringDesign
Solve → 9Merge IntervalsMediumArraySorting
Solve → 10Move ZeroesEasyArrayTwo Pointers
Solve → 11Trapping Rain WaterHardArrayTwo PointersDynamic Programming
Solve → 12Squares of a Sorted ArrayEasyArrayTwo PointersSorting
Solve →