Day 1 of June LeetCode Challenge

Aanchal Patial
1 min readJun 1, 2020

Invert a binary tree.

Example:

Input:

     4
/ \
2 7
/ \ / \
1 3 6 9

Output:

     4
/ \
7 2
/ \ / \
9 6 3 1

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Aanchal Patial

We never really grow up, we only learn how to act in public