摘要：Polycarp is working on a new operating system called BerOS. He asks you to help with implementation of a file suggestion feature. There are n files on 阅读全文

摘要：1 #include 2 #include 3 #include 4 #include 5 #include 6 #define N 10000 7 using namespace std; 8 struct EDGE 9 { 10 int to;//终点 11 int cost;//边的权值 12 }; 13 vectorG[N];//G[i]中i表示出发点 ... 阅读全文

摘要：Polycarp has nn coins, the value of the i-th coin is aiai . It is guaranteed that all the values are integer powers of 22 (i.e. ai=2dai=2d for some no 阅读全文

摘要：You are given an array a consisting of n integers a1, ..., an. In one operation, you can choose 2 elements ai and aj in which ai is divisible by aj an 阅读全文