摘要：
#include #define maxn 5000005 using namespace std; struct edge { int u=0; int v=0; int w=0; int next=0; }edge[2*maxn]; int head[maxn]; int cnt=0; int n; void addedge(int u,int v,int ... 阅读全文
摘要：
You are given kk sequences of integers. The length of the ii-th sequence equals to nini. You have to choose exactly two sequences ii and jj (i≠ji≠j) s 阅读全文