6Pow(x, n)MediumMathRecursion
Solve → 7Unique PathsMediumMathDynamic ProgrammingCombinatorics
Solve → 8Climbing StairsEasyMathDynamic ProgrammingMemoization
Solve → 9Fibonacci NumberEasyMathDynamic ProgrammingRecursion
Solve → 10Add BinaryEasyMathStringBit Manipulation
Solve → 11Sqrt(x)EasyMathBinary Search
Solve → 12Fizz BuzzEasyMathStringSimulation
Solve → 13Count the Digits That Divide a NumberEasyMath
Solve → 14Water BottlesEasyMathSimulation
Solve → 15Integer to English WordsHardMathStringRecursion
Solve → 16Minimum Cuts to Divide a CircleEasyMathGeometry
Solve → 17The kth Factor of nMediumMathNumber Theory
Solve → 18Divisor GameEasyMathDynamic ProgrammingBrainteaser
Solve → 19Maximum SwapMediumMathGreedy
Solve → 21Power of TwoEasyMathBit ManipulationRecursion
Solve → 22Convert a Number to HexadecimalEasyMathStringBit Manipulation
Solve → 23Bulb SwitcherMediumMathBrainteaser
Solve → 26Count the Digits That Divide a NumberEasyMath
Solve → 27Minimum Cuts to Divide a CircleEasyMathGeometry
Solve → 28Pow(x, n)MediumMathRecursion
Solve → 29Climbing StairsEasyMathDynamic ProgrammingMemoization
Solve → 30Fibonacci NumberEasyMathDynamic ProgrammingRecursion
Solve → 31Unique PathsMediumMathDynamic ProgrammingCombinatorics
Solve → 32Add BinaryEasyMathStringBit Manipulation
Solve → 33Sqrt(x)EasyMathBinary Search
Solve → 34Fizz BuzzEasyMathStringSimulation
Solve → 36Water BottlesEasyMathSimulation
Solve → 37Power of TwoEasyMathBit ManipulationRecursion
Solve → 38The kth Factor of nMediumMathNumber Theory
Solve → 39Integer to English WordsHardMathStringRecursion
Solve → 40Divisor GameEasyMathDynamic ProgrammingBrainteaser
Solve → 41Maximum SwapMediumMathGreedy
Solve → 42Bulb SwitcherMediumMathBrainteaser
Solve → 43Convert a Number to HexadecimalEasyMathStringBit Manipulation
Solve → 44Subtract the Product and Sum of Digits of an IntegerEasyMath
Solve → 45Multiply StringsMediumMathStringSimulation
Solve →