Day 23 of June LeetCode Challenge

Aanchal Patial
1 min readJun 23, 2020

Given a complete binary tree, count the number of nodes.

Note:

Definition of a complete binary tree from Wikipedia:
In a complete binary tree every level, except possibly the last, is completely filled, and all nodes in the last level are as far left as possible. It can have between 1 and 2h nodes inclusive at the last level h.

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Aanchal Patial

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