输出字符空心正方形

결과	아아디	시간	메모리	언어	코드	제출 시각
AC	尹睦添	1ms	376 KiB	C++14(O2)	285 Bytes	2024-10-2 5:30:20
AC	李开澜	1ms	380 KiB	C++14(O2)	206 Bytes	2024-10-1 19:38:35
AC	david3003	2ms	376 KiB	C++14(O2)	245 Bytes	2024-9-10 20:59:23
AC	王梓任	2ms	376 KiB	C++14(O2)	279 Bytes	2024-8-26 8:50:37
AC	luanyuchen	2ms	376 KiB	C++14(O2)	219 Bytes	2024-5-22 18:31:38
AC	Leo123456	2ms	380 KiB	C++14(O2)	225 Bytes	2023-9-10 13:08:34
AC	suiweihaoxuan	2ms	504 KiB	C++14(O2)	386 Bytes	2023-10-1 17:29:12
AC	dongyibo	2ms	376 KiB	C++14(O2)	416 Bytes	2023-7-13 11:23:15
AC	youyou1227	15ms	3.6 MiB	Python 3	98 Bytes	2024-8-30 12:24:07