第2题-支持撤销与重做的迷你文本编辑器

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	vBLiORhKxk	3672ms	102.9 MiB	Java	2.1 KiB	2026-7-13 12:21:54
AC	7caChnVsN7	3683ms	159.8 MiB	Java	2.6 KiB	2026-9-8 21:24:11
AC	CodeFunc56d23064c	3733ms	111.7 MiB	Java	2.3 KiB	2026-9-4 17:05:39
AC	XHgOjDZsbz	3832ms	103.9 MiB	Java	1.9 KiB	2026-8-19 14:19:24
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	sandrone	4419ms	143.2 MiB	Java	2.3 KiB	2026-9-10 1:57:52
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