【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	15190056606	12ms	548 KiB	C++17(O2)	347 Bytes	2025-12-7 11:11:21
AC	17712578847	12ms	504 KiB	C++17(O2)	304 Bytes	2025-11-1 9:39:12
AC	15252666790	12ms	504 KiB	C++17(O2)	321 Bytes	2025-10-25 11:26:12
AC	15996006306	12ms	760 KiB	C++17(O2)	273 Bytes	2025-7-7 13:48:05
AC	15052385956	12ms	760 KiB	C++17(O2)	331 Bytes	2025-10-25 11:26:06
AC	13641567801	13ms	508 KiB	C++17(O2)	345 Bytes	2025-10-26 14:49:41
AC	13951145877	13ms	532 KiB	C++17(O2)	333 Bytes	2025-10-25 10:38:12
AC	15952606862	13ms	760 KiB	C++17(O2)	331 Bytes	2025-10-25 11:27:42
AC	15861021069	13ms	508 KiB	C++17(O2)	309 Bytes	2025-10-26 14:44:17
AC	15896581923	13ms	532 KiB	C++17(O2)	332 Bytes	2025-10-25 11:27:01
AC	13901420420	13ms	508 KiB	C++17(O2)	339 Bytes	2025-10-25 11:27:27
AC	18944805329	14ms	756 KiB	C++17(O2)	354 Bytes	2025-12-7 11:06:42
AC	15052321516	14ms	504 KiB	C++17(O2)	335 Bytes	2025-10-26 14:51:15
AC	15961095085	14ms	760 KiB	C++17(O2)	354 Bytes	2025-12-7 11:08:42
AC	13705268705	14ms	756 KiB	C++17(O2)	326 Bytes	2025-12-7 11:13:34
AC	15905258371	14ms	520 KiB	C++17(O2)	346 Bytes	2025-12-5 19:02:36
AC	15896035665	14ms	532 KiB	C++17(O2)	353 Bytes	2025-12-5 18:59:01
AC	18082060086	14ms	532 KiB	C++17(O2)	343 Bytes	2025-10-25 11:26:51
AC	caochungui	14ms	504 KiB	C++17(O2)	314 Bytes	2025-10-20 9:57:05
AC	15896015968	14ms	508 KiB	C++17(O2)	322 Bytes	2025-10-25 15:59:53
AC	18796792921	15ms	504 KiB	C++17(O2)	328 Bytes	2025-10-26 14:48:27
AC	18451652600	15ms	508 KiB	C++17(O2)	341 Bytes	2025-10-26 16:24:43