C++对拍数据生成

 #include<map>
 #include<ctime>
 #include<queue>
 #include<cmath>
 #include<cstdio>
 #include<vector>
 #include<cstring>
 #include<cstdlib>
 #include<iostream>
 #include<algorithm>
 #include<stack>
 using namespace std;
 int n,m,i,x,y,z,t;
 int main()
 {
     srand(time(NULL));
     freopen("data.in","w",stdout);
     n=rand()%+; m=rand()%+;
     printf("%d %d\n",n,m);
     for(i=;i<=m;i++)
     {
         x=rand()%n+;
         y=rand()%n+;
         if(x>y){t=x;x=y;y=t;}
         z=rand()%+;
         printf("%d %d %d\n",x,y,z);
     }
     return ;
 }