Leetcode | 1261. Find Elements in a Contaminated Binary Tree | Medium | Java

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This video has the Problem Statement, Solution Walk-through, Code and Dry Run for the Leetcode Question 1261. Find Elements in a Contaminated Binary Tree, with Time Complexity of O(n) and Space Complexity of O(n).

Please refer these similar Binary tree questions solved using BFS, where I explained it using an example with dry run:

Time Stamps ⏱️:
0:00 - Problem Statement
1:09 - Solution Walk-through
2:27 - Coding [Java]
6:13 - Time and Space Complexity
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1261. Find Elements in a Contaminated Binary Tree
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To learn about BFS and queue dry-run, please refer these videos where I explained it using an example with dry run:

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