2Find First and Last Position of Element in Sorted ArrayMediumArrayBinary Search
Solve → 3Number of IslandsMediumArrayDepth-First SearchBreadth-First Search
Solve → 4Form Smallest Number From Two Digit ArraysEasyArrayHash TableEnumeration
Solve → 5Minimum Difference Between Highest and Lowest of K ScoresEasyArraySliding WindowSorting
Solve → 6Search in Rotated Sorted ArrayMediumArrayBinary Search
Solve → 7Find All Numbers Disappeared in an ArrayEasyArrayHash Table
Solve → 8Battleships in a BoardMediumArrayDepth-First SearchMatrix
Solve → 10Find First and Last Position of Element in Sorted ArrayMediumArrayBinary Search
Solve → 11Number of IslandsMediumArrayDepth-First SearchBreadth-First Search
Solve → 12Form Smallest Number From Two Digit ArraysEasyArrayHash TableEnumeration
Solve → 13Minimum Difference Between Highest and Lowest of K ScoresEasyArraySliding WindowSorting
Solve → 14Search in Rotated Sorted ArrayMediumArrayBinary Search
Solve → 15Battleships in a BoardMediumArrayDepth-First SearchMatrix
Solve → 16Find All Numbers Disappeared in an ArrayEasyArrayHash Table
Solve →