摘要：
#include "iostream"#include "cstdio"#include "cstring"#include "queue"#include "algorithm"using namespace std;#define mem(a,y) memset(a,y,sizeof(a))#define inf 0x7f7f7f7fconst int maxn = 1100;const int maxm = 30000;struct node{ int v,len,next;}edge[m 阅读全文
