第2题-迷你文本编辑器的撤销与重做功能

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	v3ngtLGjBJ	60ms	6.9 MiB	C++17(O2)	2.8 KiB	2026-7-10 16:24:45
AC	弓长永弓虽	62ms	6.8 MiB	C++17(O2)	2.3 KiB	2026-7-1 15:00:57
AC	PvPJQtbzDh	68ms	6.8 MiB	C++17(O2)	1.6 KiB	2026-6-22 20:55:10
AC	tZP2QAKdut	77ms	7.1 MiB	C++17(O2)	1.6 KiB	2026-7-19 20:33:20
AC	YkbXZfdgE6	79ms	7 MiB	C++17(O2)	1.5 KiB	2026-7-9 20:06:58
AC	VhZVGUNG3W	88ms	7 MiB	C++17(O2)	1.7 KiB	2026-8-16 22:01:42
AC	ae5lYV2Bsv	95ms	7 MiB	C++	1.9 KiB	2026-6-21 17:13:25
AC	vYOTeG0XZj	96ms	7.6 MiB	C++17(O2)	1.6 KiB	2026-8-11 15:01:27
AC	DSC4MoFRr4	104ms	6.7 MiB	C++	1.8 KiB	2026-6-20 13:56:58
AC	7bnpNdKsWm	104ms	7 MiB	C++	1.8 KiB	2026-7-13 23:10:01
AC	JIAAAA	106ms	7.1 MiB	C++14(O2)	2.7 KiB	2026-6-22 11:31:42
AC	8I0YrndVYP	107ms	7 MiB	C++17(O2)	2 KiB	2026-7-16 23:18:11
AC	HXbPqS8qFh	111ms	6.8 MiB	C++11	1.8 KiB	2026-7-6 11:24:32
AC	Tan2026	117ms	7.1 MiB	C++17(O2)	2 KiB	2026-6-20 17:06:07
AC	R96C5NTa20	121ms	6.8 MiB	C++17(O2)	1.5 KiB	2026-7-27 19:59:29
AC	qfnIlNAfJR	126ms	22.9 MiB	C++17(O2)	2.4 KiB	2026-6-19 16:33:49
AC	Lion	129ms	22.8 MiB	C++17(O2)	2.4 KiB	2026-7-25 21:26:08
AC	jMvAVmIsFq	133ms	19.2 MiB	C++17(O2)	1.1 KiB	2026-6-28 18:54:09
AC	kJCHGLSmj0	134ms	6.7 MiB	C++17(O2)	1.5 KiB	2026-6-20 21:20:29
AC	gwFIbUHtPy	140ms	7.1 MiB	C++17(O2)	2.1 KiB	2026-8-5 20:49:11
AC	PVpcVYULt3	158ms	7.1 MiB	C++11	1.9 KiB	2026-7-20 21:51:37
AC	fTEqZz4iF2	164ms	13.2 MiB	C++17(O2)	2.1 KiB	2026-8-15 16:16:53
AC	K29kEtj8AY	167ms	6.7 MiB	C++	2.3 KiB	2026-7-2 16:01:24
AC	aCOyiuO328	170ms	22.8 MiB	C++17(O2)	1.8 KiB	2026-6-18 9:41:25
AC	CodeFund2c74adcdb	181ms	22.9 MiB	C++17(O2)	2.6 KiB	2026-6-24 12:23:04
AC	Re6cykYjCF	188ms	23.3 MiB	C++17(O2)	1.8 KiB	2026-7-20 22:14:06
AC	qn5QrPGfbO	242ms	23 MiB	C++17(O2)	2.1 KiB	2026-7-20 17:22:38
AC	DjfX2eK4Un	246ms	19.4 MiB	C++17(O2)	2.6 KiB	2026-7-4 15:25:42
AC	QhwxtlDzxr	256ms	23 MiB	C++17(O2)	1.8 KiB	2026-8-17 11:17:48
AC	ZW2AbEyfxZ	311ms	12.1 MiB	Golang	2 KiB	2026-8-4 15:24:10
AC	t4NFLBJSAM	461ms	26.8 MiB	Python 3	1.9 KiB	2026-6-22 13:26:02
AC	gJ0ta77euJ	472ms	17.5 MiB	C++17	2.2 KiB	2026-8-18 15:00:04
AC	XW1g4AQ1h4	486ms	28.5 MiB	Python 3	1.5 KiB	2026-6-23 11:25:59
AC	QQoWFQuI6U	496ms	27.8 MiB	Python 3	1.3 KiB	2026-6-18 11:08:11
AC	oTK0h8CTeR	592ms	38.8 MiB	Python 3	1.8 KiB	2026-6-22 9:24:00
AC	qhchME67E0	629ms	17.1 MiB	Python 3	1.1 KiB	2026-8-18 13:07:53
AC	Ea2BZp5I8e	659ms	26.8 MiB	Python 3	970 Bytes	2026-7-31 0:20:29
AC	hexi	666ms	38.8 MiB	Python 3	1.8 KiB	2026-7-1 12:03:08
AC	AutRiver	681ms	6.7 MiB	C++17(O2)	1.6 KiB	2026-6-23 11:24:47
AC	汽水	686ms	39 MiB	Python 3	1.5 KiB	2026-8-3 21:01:31
AC	JvUpEHi9zk	695ms	29.8 MiB	Python 3	1.5 KiB	2026-8-18 12:57:23
AC	aW9M0C2Xb7	699ms	38.9 MiB	Python 3	1.3 KiB	2026-8-7 17:50:51
AC	R6A3imBTGP	717ms	16.3 MiB	Python 3	1.8 KiB	2026-7-30 11:22:18
AC	787878	731ms	19.4 MiB	C++17(O2)	1.7 KiB	2026-7-28 18:20:04
AC	w5Adfp500g	879ms	15.3 MiB	Python 3	1.5 KiB	2026-7-9 17:05:00
AC	tiY0SXLEBX	1059ms	29.8 MiB	Python 3	1.4 KiB	2026-8-10 16:33:15
AC	UXtNdEkSta	1103ms	16 MiB	Python 3	1.3 KiB	2026-6-24 23:06:57
AC	91fydEdswI	1112ms	26.8 MiB	Python	1.7 KiB	2026-7-10 11:18:35
AC	Bylan	1177ms	16.3 MiB	Python 3	2.6 KiB	2026-7-21 16:53:35
AC	A0b99Ihlsg	1196ms	91.6 MiB	Javascript (JSC)	1.6 KiB	2026-6-24 15:37:23
AC	9R2jVvrYbX	1198ms	15.9 MiB	Python 3	1.1 KiB	2026-6-20 13:08:52
AC	AoU9AnjC7d	1209ms	16.1 MiB	Python 3	944 Bytes	2026-7-13 23:53:19
AC	ms2Jh1iIS2	1217ms	16 MiB	Python 3	1.1 KiB	2026-6-22 18:49:21
AC	ADyu5THckU	1254ms	16.2 MiB	Python 3	1.1 KiB	2026-8-17 18:04:24
AC	k7aXVPbJFM	1271ms	65.1 MiB	Java	2.4 KiB	2026-6-24 17:04:16
AC	dtl4OTVUok	1279ms	7.1 MiB	C++17(O2)	1.8 KiB	2026-6-24 4:13:52
AC	lbXHEfdQfb	1310ms	18.4 MiB	Python 3	632 Bytes	2026-7-12 14:29:23
AC	oqiHmUKYyz	1313ms	16.2 MiB	Python	798 Bytes	2026-8-11 21:24:55
AC	cHGM2ItM5m	1353ms	42.7 MiB	Python 3	891 Bytes	2026-6-19 13:38:56
AC	assert	1388ms	105.4 MiB	PyPy3	1.3 KiB	2026-6-21 19:11:40
AC	CodeFun38d9894f7c	1463ms	76.1 MiB	Java	3.4 KiB	2026-6-20 1:47:23
AC	CwMRGAE1LE	1477ms	20.9 MiB	Python 3	612 Bytes	2026-7-9 14:55:23
AC	眞令人无语	1642ms	90.8 MiB	Java	2.9 KiB	2026-8-12 16:21:15
AC	努力会更好22	1768ms	77 MiB	Java	3.1 KiB	2026-7-28 14:37:29
AC	RSTUJnEEau	1778ms	87.4 MiB	Java	3.2 KiB	2026-8-14 17:02:20
AC	zqINuwwATk	1943ms	38.4 MiB	Python 3	1.1 KiB	2026-7-20 20:57:49
AC	vrLOFeOQxT	2114ms	17.6 MiB	Python 3	1012 Bytes	2026-8-12 10:08:16
AC	lybhit2002@163.com	2354ms	15.1 MiB	Python 3	1.6 KiB	2026-6-22 11:46:33
AC	2Qoc9cjFeO	2394ms	45.2 MiB	Python 3	1.5 KiB	2026-7-23 11:03:40
AC	3uJWsRxCE1	2473ms	79.8 MiB	Java	1.7 KiB	2026-8-14 10:56:02
AC	OmcZMbaH6a	2641ms	44.7 MiB	Python 3	1.3 KiB	2026-8-5 22:40:31
AC	JoeZhou	2946ms	44.4 MiB	Python 3	997 Bytes	2026-8-18 14:51:17
AC	0JLpxh9AzY	3182ms	205.2 MiB	PyPy3	831 Bytes	2026-7-7 17:24:42
AC	bZCd6uZ3EW	3229ms	98.9 MiB	Java	1.5 KiB	2026-6-20 22:21:28
AC	JjoqbjET9v	3229ms	17.5 MiB	Python 3	2.7 KiB	2026-7-18 22:33:48
AC	ghvr	3280ms	14.3 MiB	Python 3	1.8 KiB	2026-7-7 16:44:46
AC	00OIXsZYY1	3283ms	123.5 MiB	Java	2.5 KiB	2026-7-26 16:52:18
AC	vBLiORhKxk	3672ms	102.9 MiB	Java	2.1 KiB	2026-7-13 12:21:54
AC	blingx	4004ms	107.9 MiB	Java	2.6 KiB	2026-7-30 16:09:13
AC	Z7I87ksnep	4207ms	122.8 MiB	Java	2.6 KiB	2026-6-25 20:07:44
AC	6QSmWiL7tL	4290ms	122.6 MiB	Java	2.4 KiB	2026-7-6 11:54:19
AC	UsPtZJl851	4353ms	122.6 MiB	Java	2.6 KiB	2026-7-10 20:53:40
AC	y6hrxPPLRH	4397ms	121.4 MiB	Java	3.6 KiB	2026-8-14 16:23:41
AC	lingqi	4502ms	122.6 MiB	Java	2.3 KiB	2026-6-24 16:13:32
AC	1P3IPu6j01	4584ms	137.9 MiB	Java	3 KiB	2026-6-23 17:02:20
AC	Ux0LaPmB0i	5440ms	197.5 MiB	Java	2.2 KiB	2026-8-3 16:40:15
AC	u6vCsT24gP	5608ms	125.5 MiB	Java	2.8 KiB	2026-8-11 22:34:36