https://www.luogu.com.cn/article/subx0mrq https://www.luogu.com.cn/article/j2j8iebb 这两篇题解的代码都完全一致了
https://www.luogu.com.cn/article/ol2eggvl https://www.luogu.com.cn/article/ra55opvr 这不是 Java 组吗?怎么 C++ 题解也能过