摘要：
题库链接：https://ac.nowcoder.com/acm/contest/370/Fcode:#includeusing namespace std;int n,m,s;struct edge{ int to;int cost;};vector e[11... 阅读全文
摘要：
题目链接：https://ac.nowcoder.com/acm/contest/370/Icode:#includeusing namespace std;typedef unsigned long long ll;ll mod=1e9+7;ll pow(ll x,... 阅读全文