求求大佬指点
by qianhaoyu @ 2023-10-22 20:20:54
坐标可以为负？（数组越界）
by zhouzihang1 @ 2023-10-22 20:21:27
一波玄学操作后竟然[AC](https://www.luogu.com.cn/record/131103479)了
by qianhaoyu @ 2023-10-22 20:33:21