【例9.3】小写字母转大写字母

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	xiaozheng	8ms	540 KiB	C++14	115 Bytes	2025-3-1 15:36:35
AC	liangbo	9ms	324 KiB	C++14	107 Bytes	2025-2-22 16:41:08
AC	xiongyining	9ms	540 KiB	C++14	120 Bytes	2025-3-6 18:48:31
AC	宋帅	9ms	540 KiB	C++14	143 Bytes	2025-5-4 8:25:55