n的范围是10的8次方，数组会炸
by sunhaozhe111022 @ 2024-04-23 20:55:10
@[sunhaozhe111022](/user/995215)
哦哦 谢谢dalao
by zhouyuxuan2023 @ 2024-04-23 20:59:58
用`bool`
by 20121028LRR @ 2024-04-23 21:01:56
@[20121028LRR](/user/1003179)
@[sunhaozhe111022](/user/995215)
本蒟蒻已AC
by zhouyuxuan2023 @ 2024-04-23 21:17:54