• https://www.luogu.com.cn/problem/P7037
• https://www.luogu.com.cn/problem/P7036
• https://www.luogu.com.cn/problem/P7028
• https://www.luogu.com.cn/problem/P7039
• https://www.luogu.com.cn/problem/P7041

滥用 latex

• https://www.luogu.com.cn/problem/P7024

这个翻译是乱搞坑 kals 的吧，不太好