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nodchip
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Nov 17, 2025
| continue; | ||
| } | ||
| max_depth = std::max(max_depth, depth); | ||
| node_and_depth.push(std::make_pair(node->left, depth + 1)); |
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自分ならここで if (node->left) し、無駄な push() と pop() を省くのですが、趣味の範囲だと思います。
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104. Maximum Depth of Binary Tree
https://leetcode.com/problems/maximum-depth-of-binary-tree/