gen:

#include<bits/stdc++.h>
using namespace std;
signed main(){
    puts("200000 1 100");
    for(int i=1;i<=2e5;i++) puts("0 0");
}

ans：19999900000

HACK了许许多多的题解，答案需要开long long的。

本次没有仔细测试，而是仅仅查看了有没有开long long，请管理员仔细检查后再撤题解。

1. https://www.luogu.com.cn/blog/2235620697A/solution-p1311

2. https://www.luogu.com.cn/blog/user20197/solution-p1311

3. https://www.luogu.com.cn/blog/F-C-S/solution-p1311

4. https://www.luogu.com.cn/blog/F-C-S/solution-p1311

5. https://www.luogu.com.cn/blog/ufo-blog-PROGRESS/xuan-zhai-ke-zhan-xie-ti-bao-gao

6. https://www.luogu.com.cn/blog/little-black/solution-p1311

7. https://www.luogu.com.cn/blog/yrh/solution-p1311

8. https://www.luogu.com.cn/blog/134080/solution-p1311

9. https://www.luogu.com.cn/blog/tbr-blog/solution-p1311

10. https://www.luogu.com.cn/blog/wyz123321/solution-p1311

11. https://www.luogu.com.cn/blog/Owencodeisking/solution-p1311

12. https://www.luogu.com.cn/blog/sea-wyj/solution-p1311

13. https://www.luogu.com.cn/blog/oyokuaizi/ti-xie-p1311-xuan-zhai-ke-zhan

14. https://www.luogu.com.cn/blog/szxkk/solution-p1311

15. https://nice-try.blog.luogu.org/solution-p1311

16. https://p02-1010751281.blog.luogu.org/solution-p1311

目前仅仅查看了前2页，幸存者仅有3篇左右。