Daily LeetCode Problem 2265 | Count Nodes Equal to Average of Subtree | Binary Tree DFS | 10/09/26

Solve LeetCode 2265 - Average of Subtree using a simple DFS approach. In this video, we break down how to calculate the sum and count of every subtree and use them to check whether the current node equals the subtree average. Approach: Recursively process left and right subtrees Return {sum, count} from each subtree Calculate the current subtree's sum and node count Check whether root-val == sum / count Count all valid nodes Complexity: Time: O(n) Space: O(h), where h is the tree height If you find this solution useful, like and subscribe for more DSA, LeetCode, system design, and backend engineering content. #LeetCode #DSA #BinaryTree #DFS #Coding #Programming #Cpp #LeetCode2265 #viral #trending #explorepage #fyp #reachmore #likeforlike #engagementboost #doubletap #EdgeCaseOffByOne