String | K5kC

Construct String With Repeat Limit

Find Longest Special Substring That Occurs Thrice 2

Find Longest Special Substring That Occurs Thrice 1

Move Pieces to Obtain a String Problem

Adding Spaces to a String

Valid Palindrome 3 - Is string palindrome after deleting at most k chars

Check If a Word Occurs As a Prefix of Any Word in a Sentence Problem

Make String a Subsequence Using Cyclic Increments

Maximum Score After Splitting a String

Valid Palindrome 4 - is string palindrome after at most 2 char replacement