练20.3 开灯关灯

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	冼子童	2ms	492 KiB	C++98	88 Bytes	2025-11-25 17:23:10
AC	庞少卿	3ms	504 KiB	C++98	184 Bytes	2025-10-20 20:09:14
AC	朱梓霖	3ms	508 KiB	C++98	87 Bytes	2025-10-1 10:32:57
AC	朱子轩	3ms	536 KiB	C++14(O2)	89 Bytes	2025-9-14 14:24:37
AC	陈天翊	3ms	504 KiB	C++98	88 Bytes	2025-11-18 21:52:25
AC	劳钰峰	3ms	504 KiB	C++98	106 Bytes	2025-10-1 12:00:45
AC	张若煊	3ms	536 KiB	C++98	93 Bytes	2025-9-23 21:35:46
AC	陈沛宜	3ms	504 KiB	C++98	88 Bytes	2025-12-3 11:38:24