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Minimum Number of Operations to Sort a Binary Tree by Level

Reverse Odd Levels of Binary Tree Problem

Construct String With Repeat Limit

Final Array State After K Multiplication Operations 1 Problem

Find Score of an Array After Marking All Elements

Take Gifts From the Richest Pile

Special Array 2

Maximum Number of Integers to Choose From a Range 1

Move Pieces to Obtain a String Problem

Make String a Subsequence Using Cyclic Increments