Leetcode 102 Binary Tree Level Order Traversal (Java)

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Leetcode 102 Binary Tree Level Order Traversal (Java)

BFS Technique for performing a level order traversal of a binary tree.

0:00 Problem Introduction
0:44 Solution Overview
1:57 Code
5:25 Code Walkthrough
6:57 Run / Debug Solution

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- array. hashmap, dynamic programming, binary search, DFS, BFS, graphs, trees, tree traversal, graph traversal, minimum, maximum, heap, priority queue, hashset, set, hash set, map, hash map, sorting, searching
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can we improve space complexity be removing data from resultlist LL after adding it in result list ? this code will consume lot of space complexity .

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