@[一扶苏一](/user/65363)
by A_zjzj @ 2023-01-11 22:13:00
@[mrsrz](/user/6813) @[小粉兔](/user/10703)
by A_zjzj @ 2023-01-11 22:17:29
@[ice_in_sky](/user/225100) 数据的规模这么大，比较难吧
by A_zjzj @ 2023-01-11 22:39:40
刚刚那个有点小问题，重新发一下 gen.cpp
```cpp
#include"testlib.h"
#include<bits/stdc++.h>
using namespace std;
int main(int argc,char *argv[]){
registerGen(argc,argv,1);
int n=2e5,m=2e5;
for(int i=1;i<=n/2;i++)putchar("ab"[i&1]);
printf("c");
for(int i=1;i<n/2;i++)putchar("ab"[i&1]);
printf("\n%d\n",m);
for(int l,r;m--;){
l=rnd.next(1,n),r=rnd.next(1,n);
if(l>r)swap(l,r);
printf("%d %d\n",l,r);
}
}
```
by A_zjzj @ 2023-01-11 22:42:20
剪切板里放不下
by A_zjzj @ 2023-01-11 22:43:25
哦，我是sb。你给的是数据生成器。
by fresh_boy @ 2023-01-11 22:50:13
~~我以为你给的暴力代码。~~
by fresh_boy @ 2023-01-11 22:50:33
@[dottle](/user/79067) @[_RSY_](/user/46197)
by 小粉兔 @ 2023-01-12 05:34:11