1Longest Arithmetic SubsequenceMediumArrayHash TableBinary Search
Solve → 2Minimum Adjacent Swaps for K Consecutive OnesHardArrayGreedySliding Window
Solve → 3Non-decreasing ArrayMediumArray
Solve → 4Minimum Cost For TicketsMediumArrayDynamic Programming
Solve → 5Koko Eating BananasMediumArrayBinary Search
Solve → 6Baseball GameEasyArrayStackSimulation
Solve → 7Longest Common PrefixEasyArrayStringTrie
Solve → 8Best Time to Buy and Sell StockEasyArrayDynamic Programming
Solve → 9Minimum Number of Operations to Satisfy ConditionsMediumArrayDynamic ProgrammingMatrix
Solve → 10Two SumEasyArrayHash Table
Solve → 11Find the Town JudgeEasyArrayHash TableGraph Theory
Solve → 12Merge IntervalsMediumArraySorting
Solve → 13Number of IslandsMediumArrayDepth-First SearchBreadth-First Search
Solve → 14Maximum SubarrayMediumArrayDivide and ConquerDynamic Programming
Solve → 15Product of Array Except SelfMediumArrayPrefix Sum
Solve → 16Kth Largest Element in an ArrayMediumArrayDivide and ConquerSorting
Solve → 17Partition Array Into Three Parts With Equal SumEasyArrayGreedy
Solve → 18Group AnagramsMediumArrayHash TableString
Solve → 19Find First and Last Position of Element in Sorted ArrayMediumArrayBinary Search
Solve → 20Jump GameMediumArrayDynamic ProgrammingGreedy
Solve → 213SumMediumArrayTwo PointersSorting
Solve → 22Sum of Digit Differences of All PairsMediumArrayHash TableMath
Solve → 23Median of Two Sorted ArraysHardArrayBinary SearchDivide and Conquer
Solve → 24K Divisible Elements SubarraysMediumArrayHash TableTrie
Solve → 25Minimum Cost For TicketsMediumArrayDynamic Programming
Solve → 26Koko Eating BananasMediumArrayBinary Search
Solve → 27Baseball GameEasyArrayStackSimulation
Solve → 28Longest Arithmetic SubsequenceMediumArrayHash TableBinary Search
Solve → 29Minimum Number of Operations to Satisfy ConditionsMediumArrayDynamic ProgrammingMatrix
Solve → 30Minimum Adjacent Swaps for K Consecutive OnesHardArrayGreedySliding Window
Solve → 31Longest Common PrefixEasyArrayStringTrie
Solve → 32Number of IslandsMediumArrayDepth-First SearchBreadth-First Search
Solve → 33Best Time to Buy and Sell StockEasyArrayDynamic Programming
Solve → 34Two SumEasyArrayHash Table
Solve → 35Find the Town JudgeEasyArrayHash TableGraph Theory
Solve → 36Maximum SubarrayMediumArrayDivide and ConquerDynamic Programming
Solve → 37Merge IntervalsMediumArraySorting
Solve → 38Degree of an ArrayEasyArrayHash Table
Solve → 39Product of Array Except SelfMediumArrayPrefix Sum
Solve → 40Partition Array Into Three Parts With Equal SumEasyArrayGreedy
Solve → 41Kth Largest Element in an ArrayMediumArrayDivide and ConquerSorting
Solve → 42Find First and Last Position of Element in Sorted ArrayMediumArrayBinary Search
Solve → 43Jump GameMediumArrayDynamic ProgrammingGreedy
Solve → 44Group AnagramsMediumArrayHash TableString
Solve → 45Sum of Digit Differences of All PairsMediumArrayHash TableMath
Solve → 463SumMediumArrayTwo PointersSorting
Solve → 47Median of Two Sorted ArraysHardArrayBinary SearchDivide and Conquer
Solve → 48K Divisible Elements SubarraysMediumArrayHash TableTrie
Solve → 49Non-decreasing ArrayMediumArray
Solve → 50Minimum Cost Walk in Weighted GraphHardArrayBit ManipulationUnion-Find
Solve →