Created
August 10, 2021 22:49
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| def bfs(): | |
| root = get_root() | |
| queue = collections.deque() | |
| queue.appendleft((root, 0)) | |
| res = -1 | |
| while queue: | |
| node, depth = queue.pop() | |
| if node.val >= 10: | |
| res = depth | |
| break | |
| if node.left: | |
| queue.appendleft((node.left, depth+1)) | |
| if node.right: | |
| queue.appendleft((node.right, depth+1)) | |
| return res |
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