513. Find Bottom Left Tree Value ¶
Approach 1: BFS¶
- Time: $O(n)$
- Space: $O(n)$
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 |
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1 2 3 4 5 6 7 8 9 10 11 12 |
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Approach 2: DFS¶
- Time: $O(n)$
- Space: $O(h)$
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 |
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 |
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