D.这才是真正的签到题哈

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	mibbp	3ms	376 KiB		500 Bytes	2021-11-4 23:20:42
AC	mibbp	3ms	404 KiB		532 Bytes	2021-11-4 23:20:36
AC	albertzm	4ms	376 KiB		525 Bytes	2021-11-5 12:45:15
AC	luohaoobo	265ms	376 KiB		622 Bytes	2021-11-7 10:43:40
AC	swpudxf	268ms	332 KiB	C	642 Bytes	2021-11-7 10:37:11
AC	ok one	272ms	416 KiB	C	546 Bytes	2021-11-7 10:36:25
AC	xlw	278ms	376 KiB	C	645 Bytes	2021-11-8 21:40:48
AC	kirk	278ms	484 KiB		652 Bytes	2021-11-8 21:17:28
AC	DRay	278ms	396 KiB	C	533 Bytes	2021-11-9 20:55:20
AC	albertzm	279ms	472 KiB		525 Bytes	2021-11-5 13:28:17
AC	Elva	280ms	376 KiB	C	595 Bytes	2021-11-8 21:28:22
AC	albertzm	283ms	332 KiB	C	514 Bytes	2021-11-8 20:58:41
AC	xlw	289ms	392 KiB	C	533 Bytes	2021-11-8 21:13:59
AC	kibbl	311ms	376 KiB	C	591 Bytes	2021-11-8 19:55:49
AC	Sherry	355ms	2.8 MiB		603 Bytes	2021-12-22 20:48:05
AC	lionsong	377ms	348 KiB	C	510 Bytes	2021-11-13 15:43:55
AC	Sherry	378ms	492 KiB		603 Bytes	2021-12-22 20:49:36
AC	mibbp	459ms	472 KiB		500 Bytes	2021-11-7 9:33:17
AC	supreme	471ms	412 KiB	C	816 Bytes	2021-11-7 11:02:12
AC	ZXL	481ms	376 KiB	C	883 Bytes	2021-11-7 10:04:46
AC	书山压力大	489ms	376 KiB	C	989 Bytes	2021-11-7 14:04:09
AC	让我睡觉	496ms	376 KiB	C	1 KiB	2021-11-7 23:04:49
AC	殷臣不度	504ms	376 KiB	C	1022 Bytes	2021-11-8 19:52:30
AC	让我睡觉	504ms	688 KiB	C	1 KiB	2021-11-7 23:03:43
AC	让我睡觉	504ms	700 KiB	C	1 KiB	2021-11-7 23:00:35
AC	Vicczyq	606ms	376 KiB		877 Bytes	2021-11-7 10:41:28
AC	zhaoyu	739ms	820 KiB		415 Bytes	2021-11-7 11:13:10
AC	dumpline	808ms	504 KiB		436 Bytes	2021-11-5 21:37:20
AC	Mrnaoketong	814ms	504 KiB		432 Bytes	2021-11-5 20:25:55
AC	swpumarshal	845ms	2.7 MiB		546 Bytes	2021-12-11 20:48:55
AC	Janey	885ms	2.4 MiB		599 Bytes	2021-11-8 19:46:29
AC	dadazi	889ms	2.8 MiB		605 Bytes	2022-3-16 22:31:58
AC	oyf	923ms	2.4 MiB		665 Bytes	2021-11-7 9:22:11