Contest RankList -- 递归

Rank	User	Nick	Solved	Mark	A	B
1	kevin516	kevin	2	84	00:36:44	00:41:26(-1)
2	18350103629	程旭33333	2	80	04:54:24(-1)	05:03:10
3	WDMoonMoonBird	打不了弟批	1	76	11:11:08