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1497: [NOI2006]最大获利Time Limit: 5 Sec Memory Limit: 64 MBSubmit: 5123 Solved: 2492[Submit][Status][Discuss]Description新的技术正冲击着手机通讯市场,对于各大运营商来说,这既是机遇,... 阅读全文
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解方程:ax+by=c即ax≡c (mod b) 先上代码#includelong long gcd(long long a,long long b,long long &x,long long &y){ if(!b) { x=1;y=0;return a; } int d=gcd(b,a%b,y... 阅读全文