判断是否为三位数

状态	递交者	时间	内存	语言	代码	递交时间
AC	duyuchen_1	16ms	384 KiB	C++98	144 Bytes	2024-10-2 17:11:16
AC	ccyy1201	16ms	428 KiB	C++98	161 Bytes	2024-10-4 10:53:38
AC	lizhi	16ms	384 KiB	C++98	151 Bytes	2024-10-3 16:42:53
AC	administrator	17ms	512 KiB	C++98	132 Bytes	2023-11-7 11:01:34
AC	师晓晶	17ms	384 KiB	C++98	182 Bytes	2025-2-12 21:55:01
AC	yangpeilin2024	17ms	384 KiB	C++98	241 Bytes	2024-10-4 8:52:47
AC	wym	17ms	396 KiB	C++98	176 Bytes	2025-3-15 18:33:14
AC	王玉鑫	17ms	512 KiB	C++98	167 Bytes	2025-3-7 20:27:49
AC	houboxuan101018	17ms	404 KiB	C++98	164 Bytes	2025-1-23 13:58:08
AC	lidanjun	17ms	384 KiB	C++98	163 Bytes	2024-10-5 14:08:50
AC	贾恩卓	17ms	384 KiB	C++98	160 Bytes	2024-10-3 16:43:42
AC	许博然	18ms	384 KiB	C++	167 Bytes	2025-2-23 20:11:57
AC	zcrzcr	18ms	1.3 MiB	C++98	151 Bytes	2025-1-26 19:08:38
AC	赵君哲	18ms	512 KiB	C++98	153 Bytes	2024-10-2 16:42:02
AC	cuichengxuan	18ms	1.2 MiB	C++98	148 Bytes	2024-3-9 19:54:28
AC	zengfanyi	18ms	384 KiB	C++98	176 Bytes	2023-11-5 17:18:35
AC	gaojingxuan	18ms	1 MiB	C++98	161 Bytes	2025-4-5 8:44:58
AC	LIMINGBO	19ms	1.4 MiB	C++98	170 Bytes	2025-3-30 13:28:13
AC	zhaojunhao1225	19ms	428 KiB	C++98	159 Bytes	2024-10-3 8:42:41
AC	王梓硕	19ms	992 KiB	C++98	161 Bytes	2023-12-31 7:51:26
AC	liuzirui	20ms	384 KiB	C++98	149 Bytes	2024-10-2 17:10:42
AC	噩梦之魇	20ms	392 KiB	C++98	172 Bytes	2024-3-9 17:28:08
AC	路人甲	21ms	1.1 MiB	C++98	133 Bytes	2025-4-26 21:37:41