本题第一篇题解的随机，经过测试，在以下的`gen.cpp`下`M=1000`测试中会出现`1000`组错误。
```cpp
#include<bits/stdc++.h>
using namespace std;
int main()
{
freopen("xx","w",stdout);
int m=1000;
cout<<m<<endl;
for(int x=1;x<=m;x++)
{
int n=47,k=47;
cout<<n<<' '<<k<<endl;
for(int x=1;x<=n;x++)
cout<<1<<' ';
cout<<endl;
}
}
```
by N_z_ @ 2022-09-23 15:00:47
```
1
7 7
1 1 1 1 1 1 1
```
都能寄
by 江户川·萝卜 @ 2022-09-23 15:06:59
应该能直接卡到 2^-98 正确率，令人感慨。
by _Karasu_ @ 2022-09-23 15:08:56
建议撤下@[mrsrz](/user/6813)
by N_z_ @ 2022-09-23 15:28:35
@[小粉兔](/user/10703)
by N_z_ @ 2022-09-24 11:47:06