invalid memory reference，自查一下非法指针或者数组越界。
by luohuayouyi12138 @ 2022-07-06 17:56:27
用了 ios 之后就不能用 printf 了
by zenglu @ 2022-07-06 17:56:50
@[Benzenesir](/user/258178)
by luohuayouyi12138 @ 2022-07-06 17:56:51
把 ios 去掉，cin 改成 read 即可，实测 **AC**
by zenglu @ 2022-07-06 17:57:28
谢谢dalao指教，已A
by Benzenesir @ 2022-07-06 18:34:54