统计不重叠区间的个数(100分)

Status	Submit By	Time	Memory	Language	Code	Submit At
AC	hMzWbqLVCE	644ms	41.3 MiB	Java	750 Bytes	2026-7-15 16:01:46
AC	进取的剑客	648ms	15.5 MiB	Python 3	572 Bytes	2026-8-26 14:50:02
AC	oAibrIeL9w	651ms	41.4 MiB	Java	738 Bytes	2026-7-1 10:51:26
AC	TNASqStHIv	651ms	41.1 MiB	Java	2.2 KiB	2026-7-25 15:32:45
AC	urLvosCqb0	651ms	15.4 MiB	Python 3	573 Bytes	2026-8-10 23:01:53
AC	muxiao	651ms	41.2 MiB	Java	616 Bytes	2026-6-29 20:54:52
AC	W7qtPq71wy95	655ms	15.2 MiB	Python 3	535 Bytes	2026-6-30 0:12:40
AC	NnLwb197NL	661ms	40.9 MiB	Java	849 Bytes	2026-7-6 12:51:29
AC	WbGxf7Y7n6	666ms	41.6 MiB	Java	657 Bytes	2026-6-29 18:17:35
AC	fzRzp3mKFP	681ms	41.2 MiB	Java	690 Bytes	2026-6-29 22:30:30
AC	自由的溪流6067	686ms	41.8 MiB	Java	704 Bytes	2026-9-16 14:25:35
AC	UKJsqo4VTn	694ms	15.1 MiB	Python 3	658 Bytes	2026-6-29 16:16:32
AC	Javie	696ms	41.6 MiB	Java	960 Bytes	2026-7-25 22:57:01
AC	9GmpplJ3Ww	701ms	41.7 MiB	Java	847 Bytes	2026-6-29 20:02:10
AC	b6rhkzWf20	718ms	42.2 MiB	Java	1 KiB	2026-7-19 13:50:20
AC	5zwfxyXW4t	747ms	41.5 MiB	Java	780 Bytes	2026-7-6 15:35:36
AC	倔强的考拉	802ms	41.8 MiB	Java	843 Bytes	2026-8-23 22:14:17
AC	TaZi	1092ms	44.9 MiB	Java	657 Bytes	2026-6-29 11:21:14