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A. Alice's Adventures in "Chess" Alice is trying to meet up with the Red Queen in the countryside! Right now, Alice is at position
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A. Circuit Alice has just crafted a circuit with
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题目地址: https://codeforces.com/contest/2036 A. Quintomania Boris Notkin composes melodies. He represents them as a sequence of notes, where each note is 阅读全文
