Amazing job! I am really shocked at this. Confusingly, when I tried to improve my code for this : https://www.luogu.com.cn/problem/P3674. I used the blogger's code but I got RE(by code exit(-1) in my code). Could you help me and tell me why? This is my code : https://www.luogu.me/paste/rqujga10. This is my submission : https://www.luogu.com.cn/record/229504171. Thanks a lot!

so what do the authors want to express by problem g, actually i gave up immediately once iv found the solution to problem g