1443. Minimum Time to Collect All Apples in a Tree | DFS | Bottom to Top | TC - O(N) | SC - O(N)

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1443. Minimum Time to Collect All Apples in a Tree | DFS | Bottom to Top | TC - O(N) | SC - O(N)

1443. Minimum Time to Collect All Apples in a Tree | DFS | Bottom to Top | TC - O(N) | SC - O(N)