Leetcode 742 Closest Leaf in a Binary Tree - Java Solution using DFS & BFS

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Leetcode 742 Closest Leaf in a Binary Tree
Lintcode 854 · Closest Leaf in a Binary Tree

Java Solution explained using DFS & BFS.

Link To The Problem:

Problem Description:
Given a binary tree where every node has a unique value, and a target key k.

Find the value of the nearest leaf node to target k in the tree. If there are multiple cases, you should follow these priorities:

The leaf node is in the left subtree of the node with k;
The leaf node is in the right subtree of the node with k;
The leaf node is not in the subtree of the node with k.

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#interview #programminglife #programmingisfun #dfs #bfs #queue #binarytree #hashset #leetcode #leetcode742
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