1Remove K DigitsMediumStringStackGreedy
Solve → 2Remove K DigitsMediumStringStackGreedy
Solve → 3Wildcard MatchingHardStringDynamic ProgrammingGreedy
Solve → 4Longest Repeating SubstringMediumStringBinary SearchDynamic Programming
Solve → 5Longest Duplicate SubstringHardStringBinary SearchSliding Window
Solve → 6Regular Expression MatchingHardStringDynamic ProgrammingRecursion
Solve → 7Decode StringMediumStringStackRecursion
Solve → 8Longest Repeating SubstringMediumStringBinary SearchDynamic Programming
Solve → 9Longest Duplicate SubstringHardStringBinary SearchSliding Window
Solve → 10Decode StringMediumStringStackRecursion
Solve → 11Longest Repeating SubstringMediumStringBinary SearchDynamic Programming
Solve → 12Regular Expression MatchingHardStringDynamic ProgrammingRecursion
Solve → 13Remove K DigitsMediumStringStackGreedy
Solve → 14Longest Duplicate SubstringHardStringBinary SearchSliding Window
Solve → 15Wildcard MatchingHardStringDynamic ProgrammingGreedy
Solve → 16Distinct SubsequencesHardStringDynamic Programming
Solve →