Hash Table

8 questions

1Ugly Number IIMedium

Hash TableMathDynamic Programming

2Longest Substring Without Repeating CharactersMedium

Hash TableStringSliding Window

3Minimum Length of Anagram ConcatenationMedium

Hash TableStringCounting

4Minimum Number of Operations to Make Word K-PeriodicMedium

Hash TableStringCounting

5Longest Substring Without Repeating CharactersMedium

Hash TableStringSliding Window

6Minimum Length of Anagram ConcatenationMedium

Hash TableStringCounting

7Minimum Number of Operations to Make Word K-PeriodicMedium

Hash TableStringCounting

8Ugly Number IIMedium

Hash TableMathDynamic Programming