将字符串中的小写字母转换成大写字母

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	殇雪	-	-	C++20(O2)	287 Bytes	2025-10-25 15:45:22
AC	Blindman's holiday	-	-	C++17(O2)	278 Bytes	2025-10-25 16:14:04
AC	wrrr	-	-	C++20(O2)	249 Bytes	2025-10-25 15:09:26
AC	yunchen	-	-	C++17(O2)	264 Bytes	2025-10-25 14:54:23
AC	向添宇	-	-	C++17(O2)	257 Bytes	2025-10-25 16:13:05
AC	YanHua-YiLengs	-	-	C++20(O2)	244 Bytes	2025-10-25 14:42:02
AC	Britney	-	-	C	209 Bytes	2025-10-25 15:09:26
AC	241123110224	-	-	C	216 Bytes	2025-10-25 15:28:15
AC	陈予希	-	-	C++20(O2)	276 Bytes	2025-10-25 17:22:55
AC	谢坤潼	-	-	C++98	291 Bytes	2025-10-25 17:19:59
AC	lately	-	-	C++17(O2)	273 Bytes	2025-10-25 16:25:49
AC	linb	-	-	C++17(O2)	309 Bytes	2025-10-25 16:49:34
AC	Ku1usevski	-	-	C++20(O2)	267 Bytes	2025-10-25 15:30:13
AC	25112311154	-	-	C++20(O2)	244 Bytes	2025-10-25 15:53:36
AC	苍仙	-	-	C++20(O2)	271 Bytes	2025-10-25 15:25:33
AC	cclm	-	-	C++17(O2)	252 Bytes	2025-10-25 15:08:05
AC	李汶骏	-	-	C++20(O2)	359 Bytes	2025-10-25 16:04:43
AC	张力元	-	-	C++17	276 Bytes	2025-10-25 16:14:55
AC	baiyv	-	-	C++17(O2)	257 Bytes	2025-10-25 15:30:27
AC	大米饭	-	-	C++17(O2)	184 Bytes	2025-10-25 16:53:58
AC	25112311194	-	-	C	233 Bytes	2025-10-25 15:36:19
AC	道无涯	-	-	C++17(O2)	230 Bytes	2025-10-25 14:56:52
AC	241123110181	-	-	C++17(O2)	224 Bytes	2025-10-25 15:13:42
AC	朱可欣	-	-	C++17(O2)	275 Bytes	2025-10-25 15:37:56
AC	25111306112	-	-	C++98	306 Bytes	2025-10-25 16:37:00
AC	王子娴	-	-	C++17	338 Bytes	2025-10-25 15:04:14
AC	241123110299	5ms	536 KiB	C	258 Bytes	2025-10-27 11:24:13
AC	黑咖啡	5ms	348 KiB	C	292 Bytes	2025-11-1 14:55:24
AC	快下雨啊啊	9ms	536 KiB	C++17(O2)	276 Bytes	2025-10-26 0:12:07
AC	cicle	10ms	544 KiB	C++17(O2)	230 Bytes	2025-11-19 23:48:52
AC	煌yu呀	134ms	4 MiB	Python 3	120 Bytes	2025-11-7 14:54:13
AC	djdj	135ms	3.9 MiB	Python 3	31 Bytes	2025-10-27 20:40:00