Mirror Tree Given the root of a binary tree, mirror the tree, and return its last level nodes. Example 1: 2 3 6 7 Constraints: 9 9 7 6 Input: root = [4, 2, 7, 1, 3, 6, 9] Output: [9, 6, 3, 1] 2 . The number of nodes in the tree is in the range [0. 100]. • -100 <= Node.val <= 100

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A: Solving programing problem

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A: Here is the answer:-

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Q: Among computer languages, how do you define "portability?"

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Q: fintion of "web application" is n

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