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CF1882D Tree XOR 题解 – lvwangshu
新報道官

CF1882D Tree XOR 题解 – lvwangshu

新報道官October 21, 2026

[Abstract]CF1882D ツリー \(r\) がルートの場合、1 つの操作は次のとおりです: 任意の頂点 \(v\) と負でない整数 \(c\) を選択し、\(v\) の部分木を (ルート \(r\) を基準として変換します)。 全文を読む Source link

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