1Valid AnagramEasyHash TableStringSorting
Solve → 2Merge Sorted ArrayEasyArrayTwo PointersSorting
Solve → 3Valid AnagramEasyHash TableStringSorting
Solve → 4Transform Array by ParityEasyArraySortingCounting
Solve → 5Maximize the Minimum Game ScoreHardArrayBinary SearchGreedy
Solve → 6Eat Pizzas!MediumArrayGreedySorting
Solve → 8Merge IntervalsMediumArraySorting
Solve → 9Longest Substring Without Repeating CharactersMediumHash TableStringSliding Window
Solve → 10Valid AnagramEasyHash TableStringSorting
Solve → 11Second Highest SalaryMediumDatabase
Solve → 12Rotate ImageMediumArrayMathMatrix
Solve → 13Merge Sorted ArrayEasyArrayTwo PointersSorting
Solve → 14Set Matrix ZeroesMediumArrayHash TableMatrix
Solve → 15Move ZeroesEasyArrayTwo Pointers
Solve → 16Linked List Cycle IIMediumHash TableLinked ListTwo Pointers
Solve → 17Next PermutationMediumArrayTwo Pointers
Solve → 18Two SumEasyArrayHash Table
Solve → 19Valid ParenthesesEasyStringStack
Solve → 20Longest Substring Without Repeating CharactersMediumHash TableStringSliding Window
Solve → 22Next PermutationMediumArrayTwo Pointers
Solve → 23Remove Duplicates from Sorted ArrayEasyArrayTwo Pointers
Solve → 24Merge Sorted ArrayEasyArrayTwo PointersSorting
Solve → 25Reverse StringEasyTwo PointersString
Solve → 26Product of Array Except SelfMediumArrayPrefix Sum
Solve → 27Spiral MatrixMediumArrayMatrixSimulation
Solve → 28Rotate ArrayMediumArrayMathTwo Pointers
Solve → 29Longest Common PrefixEasyStringTrie
Solve → 313SumMediumArrayTwo PointersSorting
Solve → 32Rotate ImageMediumArrayMathMatrix
Solve → 33Reverse Words in a StringMediumTwo PointersString
Solve → 34Two Sum II - Input Array Is SortedMediumArrayTwo PointersBinary Search
Solve → 35Add Two NumbersMediumLinked ListMathRecursion
Solve → 36Sort an ArrayMediumArrayDivide and ConquerSorting
Solve → 37Kth Largest Element in an ArrayMediumArrayDivide and ConquerSorting
Solve → 38Group AnagramsMediumArrayHash TableString
Solve → 39Second Highest SalaryMediumDatabase
Solve → 40Gas StationMediumArrayGreedy
Solve → 41Sqrt(x)EasyMathBinary Search
Solve → 42Missing NumberEasyArrayHash TableMath
Solve → 43Reverse Nodes in k-GroupHardLinked ListRecursion
Solve → 44Single Element in a Sorted ArrayMediumArrayBinary Search
Solve → 45Roman to IntegerEasyHash TableMathString
Solve → 46Valid AnagramEasyHash TableStringSorting
Solve → 47String to Integer (atoi)MediumString
Solve → 48Find Minimum in Rotated Sorted ArrayMediumArrayBinary Search
Solve → 49Combination Sum IIMediumArrayBacktracking
Solve → 50Subarray Sum Equals KMediumArrayHash TablePrefix Sum
Solve → 51Median of Two Sorted ArraysHardArrayBinary SearchDivide and Conquer
Solve → 52Rearrange Array Elements by SignMediumArrayTwo PointersSimulation
Solve → 534SumMediumArrayTwo PointersSorting
Solve → 54SubsetsMediumArrayBacktrackingBit Manipulation
Solve → 55Longest Consecutive SequenceMediumArrayHash TableUnion Find
Solve → 56Combination SumMediumArrayBacktracking
Solve → 57Linked List CycleEasyHash TableLinked ListTwo Pointers
Solve → 58Determine the Minimum Sum of a k-avoiding ArrayMediumMathGreedy
Solve → 59Largest Number After Mutating SubstringMediumArrayStringGreedy
Solve → 60Valid PalindromeEasyTwo PointersString
Solve → 61Kids With the Greatest Number of CandiesEasyArray
Solve → 62Find the Duplicate NumberMediumArrayTwo PointersBinary Search
Solve → 63Koko Eating BananasMediumArrayBinary Search
Solve → 64Merge Two Sorted ListsEasyLinked ListRecursion
Solve → 65Integer to RomanMediumHash TableMathString
Solve → 66Greatest Common Divisor of StringsEasyMathString
Solve → 67Average Time of Process per MachineEasyDatabase
Solve → 68Find the Index of the First Occurrence in a StringEasyTwo PointersStringString Matching
Solve → 69Car FleetMediumArrayStackSorting
Solve → 70Pow(x, n)MediumMathRecursion
Solve → 71Maximum Product of Three NumbersEasyArrayMathSorting
Solve → 72Maximum Product After K IncrementsMediumArrayGreedyHeap (Priority Queue)
Solve → 73Maximum Segment Sum After RemovalsHardArrayUnion FindPrefix Sum
Solve → 74Longest Well-Performing IntervalMediumArrayHash TableStack
Solve → 75Sort the PeopleEasyArrayHash TableString
Solve → 76Maximum Number of Consecutive Values You Can MakeMediumArrayGreedySorting
Solve → 77Can Convert String in K MovesMediumHash TableString
Solve → 78Minimum Addition to Make Integer BeautifulMediumMathGreedy
Solve → 79Find the Minimum Possible Sum of a Beautiful ArrayMediumMathGreedy
Solve → 80Replace Employee ID With The Unique IdentifierEasyDatabase
Solve → 81Two SumEasyArrayHash Table
Solve → 82Transform Array by ParityEasyArraySortingCounting
Solve → 83Eat Pizzas!MediumArrayGreedySorting
Solve → 84Longest Substring Without Repeating CharactersMediumHash TableStringSliding Window
Solve → 85Determine the Minimum Sum of a k-avoiding ArrayMediumMathGreedy
Solve → 86Sort the PeopleEasyArrayHash TableString
Solve → 87Longest Well-Performing IntervalMediumArrayHash TableStack
Solve → 88Maximum Product After K IncrementsMediumArrayGreedyHeap (Priority Queue)
Solve → 89Maximum Segment Sum After RemovalsHardArrayUnion FindPrefix Sum
Solve → 90Minimum Addition to Make Integer BeautifulMediumMathGreedy
Solve → 91Can Convert String in K MovesMediumHash TableString
Solve → 92Maximum Number of Consecutive Values You Can MakeMediumArrayGreedySorting
Solve → 93Find the Minimum Possible Sum of a Beautiful ArrayMediumMathGreedy
Solve → 94Valid ParenthesesEasyStringStack
Solve → 95Maximize the Minimum Game ScoreHardArrayBinary SearchGreedy
Solve → 96Largest Number After Mutating SubstringMediumArrayStringGreedy
Solve → 97Merge Sorted ArrayEasyArrayTwo PointersSorting
Solve → 98Next PermutationMediumArrayTwo Pointers
Solve → 100Remove Duplicates from Sorted ArrayEasyArrayTwo Pointers
Solve → 101Reverse StringEasyTwo PointersString
Solve → 102Longest Common PrefixEasyStringTrie
Solve → 103Rotate ImageMediumArrayMathMatrix
Solve → 104Second Highest SalaryMediumDatabase
Solve → 105Valid AnagramEasyHash TableStringSorting
Solve → 106Product of Array Except SelfMediumArrayPrefix Sum
Solve → 107Reverse IntegerMediumMath
Solve → 1083SumMediumArrayTwo PointersSorting
Solve → 109Group AnagramsMediumArrayHash TableString
Solve → 110Rotate ArrayMediumArrayMathTwo Pointers
Solve → 111Spiral MatrixMediumArrayMatrixSimulation
Solve → 112Merge IntervalsMediumArraySorting
Solve → 113Longest Consecutive SequenceMediumArrayHash TableUnion Find
Solve → 114Reverse Words in a StringMediumTwo PointersString
Solve → 115Kth Largest Element in an ArrayMediumArrayDivide and ConquerSorting
Solve → 116Sort an ArrayMediumArrayDivide and ConquerSorting
Solve → 117Two Sum II - Input Array Is SortedMediumArrayTwo PointersBinary Search
Solve → 118Move ZeroesEasyArrayTwo Pointers
Solve → 119Find the Index of the First Occurrence in a StringEasyTwo PointersStringString Matching
Solve → 120Rearrange Array Elements by SignMediumArrayTwo PointersSimulation
Solve → 121Add Two NumbersMediumLinked ListMathRecursion
Solve → 122Single Element in a Sorted ArrayMediumArrayBinary Search
Solve → 123Reverse Nodes in k-GroupHardLinked ListRecursion
Solve → 124Sqrt(x)EasyMathBinary Search
Solve → 125Merge Two Sorted ListsEasyLinked ListRecursion
Solve → 126Missing NumberEasyArrayHash TableMath
Solve → 127Gas StationMediumArrayGreedy
Solve → 128Create a DataFrame from ListEasySolve → 129Maximum Product of Three NumbersEasyArrayMathSorting
Solve → 1304SumMediumArrayTwo PointersSorting
Solve → 131Minimum Window SubstringHardHash TableStringSliding Window
Solve → 132Integer to RomanMediumHash TableMathString
Solve → 133Koko Eating BananasMediumArrayBinary Search
Solve → 134SubsetsMediumArrayBacktrackingBit Manipulation
Solve → 135Container With Most WaterMediumArrayTwo PointersGreedy
Solve → 136Implement Queue using StacksEasyStackDesignQueue
Solve → 137Search in Rotated Sorted ArrayMediumArrayBinary Search
Solve → 138Binary SearchEasyArrayBinary Search
Solve → 139Isomorphic StringsEasyHash TableString
Solve → 141Kids With the Greatest Number of CandiesEasyArray
Solve → 142Subarray Sum Equals KMediumArrayHash TablePrefix Sum
Solve → 143Combination SumMediumArrayBacktracking
Solve → 144String to Integer (atoi)MediumString
Solve → 145Car FleetMediumArrayStackSorting
Solve → 146Median of Two Sorted ArraysHardArrayBinary SearchDivide and Conquer
Solve → 147Greatest Common Divisor of StringsEasyMathString
Solve → 148Replace Employee ID With The Unique IdentifierEasyDatabase
Solve → 149Find the Duplicate NumberMediumArrayTwo PointersBinary Search
Solve → 150Valid PalindromeEasyTwo PointersString
Solve → 151Combination Sum IIMediumArrayBacktracking
Solve → 152Pow(x, n)MediumMathRecursion
Solve → 153Average Time of Process per MachineEasyDatabase
Solve → 154Roman to IntegerEasyHash TableMathString
Solve →