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mamo3gr
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Feb 14, 2026
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| var sameLevelNodes = Queue<TreeNode?>.from([root]); |
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単に nodes でも通じそうです。この長さを保つなら、自分なら nextLevelNodes と対応するように currentLevelNodes にすると思いました。この練習会では current が嫌われる傾向にありますが、next との関係を表すためなら許容されると考えます。
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解いた問題:https://leetcode.com/problems/minimum-depth-of-binary-tree/description/
次に解く問題:https://leetcode.com/problems/merge-two-binary-trees/description/