971. Flip Binary Tree To Match Preorder Traversal

LeetCodeTreeDepth-First SearchBinary TreeOpen on judge ↗

You are given the root of a binary tree with n nodes, where each node is uniquely assigned a value from 1 to n. You are also given a sequence of n values voyage, which is the desired pre-order traversal of the binary tree. Any node in the binary tree can be flipped by swapping its left and right subtrees. For example, flipping node 1 will have the following effect: Flip the smallest number of no

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solution.cppC++17

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