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Spell checker Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 25426 Accepted: 9300 Description You, as a member of a development team for a 阅读全文
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Happy 2006 Time Limit: 3000MS Memory Limit: 65536K Total Submissions: 11956 Accepted: 4224 Description Two positive integers are said to be relatively 阅读全文
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Description Ms. Iyo Kiffa-Australis has a balance and only two kinds of weights to measure a dose of medicine. For example, to measure 200mg of aspiri 阅读全文
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拓展欧几里得定理主要用来求解同余线性方程，求逆元等，遇到题目给出形如ax+by==c，要求一组满足要求的x和y时，可以联系扩展欧几里得求解 拓展欧几里得由 gcd(a,b) = gcd(b,a%b) 推出 由于 a*x + b*y == gcd(a,b) 必定有解 所以 b*x + (a%b)*y 阅读全文
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Description In a modernized warehouse, robots are used to fetch the goods. Careful planning is needed to ensure that the robots reach their destinatio 阅读全文