1Insert Delete GetRandom O(1)MediumArrayHash TableMath
Solve → 2Simple Bank SystemMediumArrayHash TableDesign
Solve → 3Insert Delete GetRandom O(1)MediumArrayHash TableMath
Solve → 4Group AnagramsMediumArrayHash TableString
Solve → 5Insert Delete GetRandom O(1)MediumArrayHash TableMath
Solve → 6Longest Consecutive SequenceMediumArrayHash TableUnion-Find
Solve → 7Simple Bank SystemMediumArrayHash TableDesign
Solve → 8Merge IntervalsMediumArraySorting
Solve → 9Daily TemperaturesMediumArrayStackMonotonic Stack
Solve → 10Median of Two Sorted ArraysHardArrayBinary SearchDivide and Conquer
Solve → 11Task SchedulerMediumArrayHash TableGreedy
Solve → 12Container With Most WaterMediumArrayTwo PointersGreedy
Solve → 13Number of IslandsMediumArrayDepth-First SearchBreadth-First Search
Solve → 14Making File Names UniqueMediumArrayHash TableString
Solve → 15Range Sum Query 2D - ImmutableMediumArrayDesignMatrix
Solve → 16Insert Delete GetRandom O(1)MediumArrayHash TableMath
Solve → 17Simple Bank SystemMediumArrayHash TableDesign
Solve → 18Group AnagramsMediumArrayHash TableString
Solve → 19Merge IntervalsMediumArraySorting
Solve → 20Longest Consecutive SequenceMediumArrayHash TableUnion-Find
Solve → 21Container With Most WaterMediumArrayTwo PointersGreedy
Solve → 22Daily TemperaturesMediumArrayStackMonotonic Stack
Solve → 23Median of Two Sorted ArraysHardArrayBinary SearchDivide and Conquer
Solve → 24Number of IslandsMediumArrayDepth-First SearchBreadth-First Search
Solve → 25Making File Names UniqueMediumArrayHash TableString
Solve → 26Range Sum Query 2D - ImmutableMediumArrayDesignMatrix
Solve → 27Task SchedulerMediumArrayHash TableGreedy
Solve → 28Insert Delete GetRandom O(1) - Duplicates allowedHardArrayHash TableMath
Solve → 29Product of Array Except SelfMediumArrayPrefix Sum
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