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这是一篇关于二分的专项训练,现包括一道二分搜索,十一道二分答案,难度基本上是递增的,持续更新ing 二分搜索 Music Notes 题目描述: FJ is going to teach his cows how to play a song. The song consists of N (1 ⇐ 阅读全文
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Stressful Training 题目描述: Berland SU holds yet another training contest for its students today. nnn students came, each of them brought his laptop. How 阅读全文
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传送门 A. Do Not Be Distracted! 题目描述: Polycarp has 2626 tasks. Each task is designated by a capital letter of the Latin alphabet. The teacher asked Polyc 阅读全文
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M - Sum of 2050 题目描述: A number is called 2050-number if it is 20502050, 2050020500, ..., (2050⋅10k2050⋅10k for integer k≥0k≥0). Given a number nn, you 阅读全文