第1题-第几条明暗交错子序列

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	rI0SKR9o5M	28ms	7 MiB	C++17(O2)	2.1 KiB	2026-9-5 17:14:49
AC	勤劳的金鱼2288	29ms	7 MiB	C++17(O2)	1.1 KiB	2026-9-5 15:42:42
AC	luti	31ms	6.7 MiB	C++14(O2)	1.5 KiB	2026-8-30 10:51:34
AC	灵动的水手	36ms	6.3 MiB	C++17(O2)	1.5 KiB	2026-9-3 20:44:34
AC	风往南	38ms	6.2 MiB	C	1.3 KiB	2026-8-31 15:35:33
AC	67XmgX53xo	74ms	6.2 MiB	C++	1.9 KiB	2026-8-30 15:43:42
AC	VwTYwR6oJo	606ms	11.4 MiB	Python 3	1.5 KiB	2026-9-5 17:30:43
AC	CodeFunc0dc879447	704ms	42.9 MiB	Java	2.9 KiB	2026-9-5 15:21:31
AC	OVJtreC6Uz	711ms	41.6 MiB	Java	2.3 KiB	2026-9-11 22:45:21
AC	z8X90SNVkw	771ms	11.8 MiB	Python 3	1.1 KiB	2026-9-7 13:10:17
AC	执着的微风1268	788ms	43.7 MiB	Java	3 KiB	2026-9-12 9:43:19
AC	qwFctg95BV	826ms	11.4 MiB	Python 3	2 KiB	2026-9-15 14:40:10
AC	zze's dad	891ms	11.9 MiB	Python 3	1.2 KiB	2026-9-5 13:46:55
AC	EAmcwicVRi	966ms	11.8 MiB	Python 3	944 Bytes	2026-9-5 16:29:26
AC	谦虚的月亮	1015ms	11.4 MiB	Python	1.2 KiB	2026-9-16 14:45:15
AC	好学的帆船	1176ms	72.1 MiB	PyPy3	2.8 KiB	2026-9-6 0:37:39
AC	Phronima	1322ms	11.3 MiB	Python	1.1 KiB	2026-9-3 14:30:01
AC	快乐的兔子6886	1370ms	45.9 MiB	Java	1.8 KiB	2026-9-19 0:19:11
AC	Ql44nLFd5K	1373ms	11.5 MiB	Python 3	1.5 KiB	2026-9-11 11:14:40
AC	CodeFun5d0e39d11b	1397ms	11.3 MiB	Python 3	1001 Bytes	2026-8-31 11:56:08
AC	VRFk1dP60m	1407ms	11.5 MiB	Python 3	2.1 KiB	2026-9-5 6:02:32
AC	HwongHit	1424ms	11.7 MiB	Python 3	931 Bytes	2026-9-4 14:34:39
AC	YjMWRYdFVA	1453ms	11.5 MiB	Python 3	1.3 KiB	2026-9-19 20:38:58
AC	勇敢的浪花3711	1474ms	11.4 MiB	Python 3	1.6 KiB	2026-9-18 0:33:40
AC	优雅的刺猬	1507ms	45.6 MiB	Java	1.6 KiB	2026-9-18 16:43:20
AC	CodeFune7b7268815	1511ms	11.3 MiB	Python	1.3 KiB	2026-8-31 12:01:15
AC	可爱的奶茶	1522ms	44.5 MiB	Java	1.2 KiB	2026-8-31 16:09:58
AC	WDSBZq8vHP	1541ms	11.8 MiB	Python 3	987 Bytes	2026-9-8 14:35:57
AC	BhAVZDm9Ar	1542ms	11.5 MiB	Python 3	1.3 KiB	2026-9-11 10:39:07
AC	boundless	1557ms	11.5 MiB	Python 3	1.5 KiB	2026-9-4 11:10:31
AC	ipDPnt0THG	1677ms	44 MiB	Java	1.5 KiB	2026-8-31 15:39:12
AC	licat	1926ms	11.3 MiB	Python 3	1.4 KiB	2026-9-1 11:18:09
AC	甜美的栗子	2007ms	11.6 MiB	Python 3	1.5 KiB	2026-9-3 19:48:06
AC	NgEMQdgM6O	2190ms	11.4 MiB	Python 3	2 KiB	2026-9-3 11:34:05
AC	h6zqAD0SVR	2290ms	11.3 MiB	Python 3	1.3 KiB	2026-9-1 12:28:18
AC	棉芯枕頭	2386ms	11.8 MiB	Python 3	861 Bytes	2026-9-19 12:01:44
AC	奔跑的银河	2440ms	147.5 MiB	Python 3	1.8 KiB	2026-9-4 17:37:25