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#include #include #include #include #include #define INF 0x3f3f3f using namespace std; int n,k; int v[20010],w[20010]; double y[20010]; bool check(double x) { for(int i=0;i=0)return true;... 阅读全文
摘要：
Cow Acrobats Time Limit: 1000MS Memory Limit: 65536K Total Submissions: 6317 Accepted: 2368 Description Farmer John's N (1 <= N <= 50,000) cows (numbe 阅读全文
摘要：
Drying Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 21032 Accepted: 5290 Description It is very hard to wash and especially to dry cloth 阅读全文