【例21.3】字符类型判断

状态	递交者	时间	内存	语言	代码	递交时间
AC	xyc (夏懿陈)	11ms	504 KiB	C++14(O2)	256 Bytes	2025-7-9 11:39:35
AC	C++很差 (liyaoyanheng)	12ms	508 KiB	C++98	258 Bytes	2025-4-16 21:04:45
AC	jhaew rnfbc WHGLE RYGHDFW89 (郭昌言)	12ms	772 KiB	C++14(O2)	237 Bytes	2026-5-23 21:03:46
AC	孙紫轩	12ms	760 KiB	C++14(O2)	299 Bytes	2025-10-1 22:15:48
AC	栾明泽	12ms	508 KiB	C++14(O2)	254 Bytes	2025-10-1 16:09:01
AC	徐启正	13ms	544 KiB	C++14(O2)	361 Bytes	2025-8-16 13:00:11
AC	张思睿1	13ms	532 KiB	C++14(O2)	348 Bytes	2026-4-22 16:44:19
AC	zhaozhiyu	13ms	768 KiB	C++14(O2)	255 Bytes	2026-5-12 19:38:11
AC	刘东林	13ms	516 KiB	C++14(O2)	282 Bytes	2026-6-7 15:58:25
AC	孙瑞泽	13ms	504 KiB	C++14(O2)	252 Bytes	2025-10-8 20:49:17
AC	吕晨宇	13ms	508 KiB	C++14(O2)	278 Bytes	2025-7-27 9:01:25
AC	6666.66 (wangyinan)	13ms	768 KiB	C++14(O2)	698 Bytes	2026-5-17 19:38:34
AC	林嘉骥	13ms	540 KiB	C++14(O2)	297 Bytes	2026-1-25 17:39:02
AC	yaoliyidan	13ms	504 KiB	C++11	256 Bytes	2025-7-2 21:43:45
AC	杨博睿	14ms	504 KiB	C++14(O2)	227 Bytes	2025-12-5 22:07:19
AC	王家芮	14ms	512 KiB	C++14(O2)	241 Bytes	2026-5-24 18:58:34
AC	曹思源	14ms	548 KiB	C++14(O2)	234 Bytes	2025-10-7 9:04:41
AC	chy陈浩洋 (陈浩洋)	14ms	504 KiB	C++14(O2)	230 Bytes	2025-8-23 18:27:57
AC	傅祺智	14ms	768 KiB	C++14(O2)	302 Bytes	2026-5-19 19:26:00
AC	litianrui	14ms	504 KiB	C++11	262 Bytes	2025-6-29 20:45:45
AC	我爱刷题，刷题爱我！ (冷奕程)	14ms	524 KiB	C++14(O2)	243 Bytes	2026-5-18 13:12:22
AC	李承宇	14ms	504 KiB	C++14(O2)	260 Bytes	2025-10-3 23:22:35
AC	姜相池	14ms	512 KiB	C++14(O2)	241 Bytes	2026-5-23 23:50:12
AC	杜劭晴	14ms	760 KiB	C++14(O2)	274 Bytes	2025-7-18 10:01:46
AC	曹宸梓祺	14ms	516 KiB	C++14(O2)	336 Bytes	2026-6-4 12:02:08
AC	左修远	14ms	712 KiB	C++14(O2)	373 Bytes	2025-11-24 22:07:49
AC	liyaoyanlin	14ms	544 KiB	C++98	258 Bytes	2025-4-16 20:46:37
AC	常胤豪	14ms	504 KiB	C++14(O2)	257 Bytes	2025-10-1 13:26:02
AC	猫小九 (何徽珩)	14ms	512 KiB	C++14(O2)	244 Bytes	2026-5-25 20:45:51
AC	无 (何夏璞)	15ms	1 MiB	C++14(O2)	244 Bytes	2026-5-24 9:58:12
AC	zhangtianle	15ms	520 KiB	C++14(O2)	700 Bytes	2026-6-1 10:20:37
AC	周云谦	15ms	760 KiB	C++14(O2)	315 Bytes	2025-10-5 15:50:12
AC	☺刷题快乐！！！ (朱浩晨)	15ms	768 KiB	C++14(O2)	241 Bytes	2026-5-23 11:55:37