Prune Unary nodes to form Full Binary Tree

Range XOR Queries with Subarray Reversals

Amount of Time for Binary Tree to Be Infected

All Elements in Two Binary Search Trees

Longest ZigZag Path in a Binary Tree

Maximize Grid Happiness

Maximum Number of Matching Indices After Right Shifts

Maximum Product of Splitted Binary Tree

Maximum Sum BST in Binary Tree

Min Cost to Connect All Points

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