判断是否为两位数

状态	递交者	时间	内存	语言	代码	递交时间
AC	Linenyi	19ms	768 KiB	C++14(O2)	148 Bytes	2026-10-17 17:21:45
AC	王嘉怡	19ms	768 KiB	C++14(O2)	197 Bytes	2026-10-9 15:38:42
AC	zhongzichen123	20ms	512 KiB	C++14(O2)	145 Bytes	2026-10-17 17:24:22
AC	龚祥睿	20ms	2 MiB	C++14(O2)	130 Bytes	2026-10-18 19:17:51
AC	谭栋文	20ms	768 KiB	C++14(O2)	123 Bytes	2026-10-17 17:26:31
AC	xiajunxi4617	21ms	768 KiB	C++14(O2)	128 Bytes	2026-10-17 16:29:27
AC	zjx123456	22ms	768 KiB	C++14(O2)	139 Bytes	2026-10-18 20:33:40
AC	qiaoguanning	22ms	768 KiB	C++14(O2)	157 Bytes	2026-10-11 20:54:37
AC	yuanyiming1	22ms	768 KiB	C++14(O2)	144 Bytes	2026-10-17 17:20:02
AC	任墨林	22ms	2 MiB	C++14(O2)	128 Bytes	2026-10-14 6:42:30
AC	maaoran	22ms	768 KiB	C++14(O2)	161 Bytes	2026-10-17 19:44:12
AC	sunyuexi	23ms	1.7 MiB	C++14(O2)	196 Bytes	2026-10-13 21:12:25
AC	xurongze	24ms	768 KiB	C++14(O2)	150 Bytes	2026-10-17 17:19:54
AC	sunxiaoyu	24ms	768 KiB	C++14(O2)	143 Bytes	2026-10-17 17:22:45
AC	老八9178	25ms	768 KiB	C++14(O2)	149 Bytes	2026-10-19 20:58:15