Contest RankList -- if嵌套小练习

Rank	User	Nick	Solved	Mark	A	B
1	dotcpp0725766	ILKA	2	85	02:27:58(-2)	02:30:12(-1)
2	uq_39790633569	朝	1	81	02:48:43
3	uq_89790595928	淤青往日	1	79	25:56:58	(-5)
4	dotcpp0792511	H2430612062	0	75	(-1)