1Escape a Large MazeHardArrayHash TableDepth-First Search
Solve → 2Sorting Three GroupsMediumArrayBinary SearchDynamic Programming
Solve → 3As Far from Land as PossibleMediumArrayDynamic ProgrammingBreadth-First Search
Solve → 4Making A Large IslandHardArrayDepth-First SearchBreadth-First Search
Solve → 5Boats to Save PeopleMediumArrayTwo PointersGreedy
Solve → 6Satisfiability of Equality EquationsMediumArrayStringUnion-Find
Solve → 7Burst BalloonsHardArrayDynamic Programming
Solve → 8Collect Coins in a TreeHardArrayTreeGraph Theory
Solve → 9Subsets IIMediumArrayBacktrackingBit Manipulation
Solve → 10Russian Doll EnvelopesHardArrayBinary SearchDynamic Programming
Solve → 11Escape a Large MazeHardArrayHash TableDepth-First Search
Solve → 12Sorting Three GroupsMediumArrayBinary SearchDynamic Programming
Solve → 13As Far from Land as PossibleMediumArrayDynamic ProgrammingBreadth-First Search
Solve → 14Making A Large IslandHardArrayDepth-First SearchBreadth-First Search
Solve → 15Boats to Save PeopleMediumArrayTwo PointersGreedy
Solve → 16Satisfiability of Equality EquationsMediumArrayStringUnion-Find
Solve → 17Collect Coins in a TreeHardArrayTreeGraph Theory
Solve → 18Burst BalloonsHardArrayDynamic Programming
Solve → 19Subsets IIMediumArrayBacktrackingBit Manipulation
Solve → 20Russian Doll EnvelopesHardArrayBinary SearchDynamic Programming
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