Count Complete Tree Nodes | Microsoft Interview Question | Leetcode 222 #leetcode #dsa #java #code

Efficiently count the nodes of a complete binary tree! 🌳 A common Microsoft and Google interview question, this problem can be solved using recursive approach that calculates the height of the leftmost and rightmost branches. If both heights are equal, the tree is complete, and the number of nodes is calculated directly using the formula 2^h - 1. Otherwise, recursively count nodes in the left and right subtrees.
This solution optimizes the process, running in O(log² n) time, ideal for large trees! 🚀 #coding #leetcode #binarytrees #countnodes #treeproblems #recursion #microsoftinterview #microsoft #googleinterview #google #techshorts #programmingtips