【二分1】查询是否存在某个数

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	9BLsa9rTU7	4402ms	22 MiB	Python 3	409 Bytes	2026-6-1 3:59:44
AC	3eH75g1P5h	4415ms	22.1 MiB	Python 3	474 Bytes	2026-7-22 9:10:47
AC	JjoqbjET9v	4424ms	21.9 MiB	Python 3	427 Bytes	2026-7-24 22:05:00
AC	CodeFuna8ada1622c	4432ms	21.9 MiB	Python 3	427 Bytes	2026-5-31 18:19:12
AC	OrGrLfxEgC	4474ms	22 MiB	Python 3	375 Bytes	2026-7-25 10:38:59
AC	CodeFuncad932332e	4493ms	21.9 MiB	Python 3	683 Bytes	2026-6-18 11:54:25
AC	CodeFunb32ef377ed	4532ms	22.1 MiB	Python 3	410 Bytes	2026-5-20 14:51:49
AC	GeiIQRkYMZ	4561ms	21.8 MiB	Python 3	460 Bytes	2026-7-2 17:08:35
AC	CodeFun32c391ac89	4563ms	77.6 MiB	PyPy3	480 Bytes	2025-10-19 18:57:38
AC	JdwjW0mQtE	4580ms	22 MiB	Python 3	445 Bytes	2026-7-20 17:21:17
AC	Joshua66	4588ms	21.9 MiB	Python 3	405 Bytes	2026-7-29 21:32:55
AC	吞号重刷中…	4594ms	22.1 MiB	Python 3	395 Bytes	2026-7-23 7:28:13
AC	ECUpr38kNi	4607ms	22.1 MiB	Python 3	390 Bytes	2026-8-8 10:56:25
AC	mg5t8HFqjo	4611ms	21.9 MiB	Python 3	443 Bytes	2026-6-23 17:15:51
AC	A0fkZge5xp	4678ms	22 MiB	Python 3	481 Bytes	2026-7-6 21:25:48
AC	yC16AFwJgu	4775ms	21.9 MiB	Python	379 Bytes	2026-7-29 22:19:17
AC	y0p0sQjh2O	4820ms	22.1 MiB	Python 3	494 Bytes	2026-8-4 1:16:05
AC	1PDXSf3mxP	4832ms	22.1 MiB	Python 3	465 Bytes	2026-8-8 15:39:24
AC	1zKnQ7sb4J	4842ms	21.9 MiB	Python 3	409 Bytes	2026-6-3 21:45:24
AC	STV4js6Keg	4853ms	21.9 MiB	Python 3	758 Bytes	2026-5-30 11:12:14
AC	DfFejaLUs3	4909ms	22.1 MiB	Python 3	407 Bytes	2026-8-13 15:26:39
AC	p9SX9zWMZo	4955ms	22 MiB	Python 3	458 Bytes	2026-6-7 21:03:53
AC	Ngrt5DZNa3	5058ms	22.1 MiB	Python 3	500 Bytes	2026-8-12 22:12:06
AC	mtxuQE5J1m	5159ms	97 MiB	Java	1.2 KiB	2026-5-7 14:16:37
AC	Fungwong	5169ms	15.1 MiB	Python 3	368 Bytes	2026-3-27 11:55:08
AC	Qyz9Z5s0qn	5182ms	22.1 MiB	Python 3	439 Bytes	2026-8-12 20:16:56
AC	CodeFunc893ad4de1	5213ms	199.1 MiB	PyPy3	601 Bytes	2025-8-31 2:34:17
AC	6JhxMyUF2S	5253ms	22 MiB	Python 3	461 Bytes	2026-6-19 10:17:42
AC	4LOTTtrzBV	5342ms	22 MiB	Python 3	470 Bytes	2026-6-5 15:23:03
AC	yA9qBtxDPM	5346ms	22.1 MiB	Python 3	350 Bytes	2026-7-9 20:52:02
AC	Hyperloop	5388ms	22 MiB	Python 3	447 Bytes	2026-8-10 18:42:15
AC	爱笑的毛毛虫	5747ms	22.2 MiB	Python 3	583 Bytes	2026-8-13 15:32:34
AC	H3jUUvA58u	6098ms	22 MiB	Python 3	507 Bytes	2026-8-4 16:24:25
AC	MAN！	6212ms	199.3 MiB	PyPy3	711 Bytes	2025-6-16 2:02:08
AC	oqiHmUKYyz	6222ms	22 MiB	Python	394 Bytes	2026-7-27 15:58:23