@[SSerxhs](/user/29826)
by WRuperD @ 2021-07-22 11:27:21
验证码7ee7记
by WRuperD @ 2021-07-22 11:27:40
@[zimujunqwq](/user/118196) 貌似下载下来是6诶
by WRuperD @ 2021-07-22 11:33:42
@[zimujunqwq](/user/118196) 但数据下载下来是6（不信你试试？
by WRuperD @ 2021-07-22 11:36:01
[试了一下，确实](https://www.luogu.com.cn/record/53882683)
```cpp
#include <cassert>
#include <iostream>
using namespace std;
int n,m;
int x,y,z;
int main(){
cin>>n>>m;
assert(1<=n&&n<=5e3);
assert(1<=m&&m<=2e5);
for(int i=1;i<=m;i++){
cin>>x>>y>>z;
assert(!cin.fail());
assert(1<=x&&x<=n);
assert(1<=y&&y<=n);
assert(1<=z&&z<=1e4);
}
cout<<"OK!"<<endl;
return 0;
}
```
by yukimianyan @ 2021-07-22 11:36:23
@[WRuperD](/user/247388) 修了。。我扇贝
by SSerxhs @ 2021-07-22 12:31:10