co7ahang @ 2024-10-22 22:13:42
检查 https://www.luogu.com.cn/discuss/897411 如这篇文章
把对 vis 数组的判断写在 while 循环最开始的判断里
vis
while
by co7ahang @ 2024-10-22 22:14:25
记录:
https://www.luogu.com.cn/record/184116783
https://www.luogu.com.cn/record/184117901