1Top K Frequent ElementsMediumArrayHash TableDivide and Conquer
Solve → 2Insert Delete GetRandom O(1)MediumArrayHash TableMath
Solve → 3Maximum Number of AlloysMediumArrayBinary Search
Solve → 4Text JustificationHardArrayStringSimulation
Solve → 5Longest Mountain in ArrayMediumArrayTwo PointersDynamic Programming
Solve → 6Insert Delete GetRandom O(1)MediumArrayHash TableMath
Solve → 7Asteroid CollisionMediumArrayStackSimulation
Solve → 8Top K Frequent ElementsMediumArrayHash TableDivide and Conquer
Solve → 9Number of IslandsMediumArrayDepth-First SearchBreadth-First Search
Solve → 10Degree of an ArrayEasyArrayHash Table
Solve → 11Longest Mountain in ArrayMediumArrayTwo PointersDynamic Programming
Solve → 12Insert Delete GetRandom O(1)MediumArrayHash TableMath
Solve → 13Top K Frequent ElementsMediumArrayHash TableDivide and Conquer
Solve → 14Number of IslandsMediumArrayDepth-First SearchBreadth-First Search
Solve → 15Asteroid CollisionMediumArrayStackSimulation
Solve → 16Degree of an ArrayEasyArrayHash Table
Solve → 17Meeting SchedulerMediumArrayTwo PointersSorting
Solve → 18Maximum Number of AlloysMediumArrayBinary Search
Solve → 19Text JustificationHardArrayStringSimulation
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