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2015-2016 Northwestern European Regional Contest (NWERC 2015) 2015-2016 Northwestern European Regional Contest (NWERC 2015) 2015-2016 Northwestern Eur 阅读全文
posted @ 2017-10-03 19:16
yijiull
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摘要:
2016-2017 ACM-ICPC Pacific Northwest Regional Contest (Div. 1) 题解:链接 Tournament Wins Gym - 101201K 题意: 2^k个人,你排名第r, 问你能赢的期望次数. 至少赢 i 次的概率是 C(2^i-1, 2^ 阅读全文
posted @ 2017-10-03 19:07
yijiull
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