Append Characters to String to Make Subsequence Problem

Score of a String Problem

Reverse words in a string keep delimiters in order

Number of Steps to Reduce a Number in Binary Representation to One

Get Equal Substrings Within Budget

Maximum Score Words Formed by Letters Problem

Sum of All Subset XOR Totals

Evaluate Boolean Binary Tree

Maximize Happiness of Selected Children

Double a Number Represented as a Linked List

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