题目ID	标题	来源	正确数	通过率
5268-HDU	ZYB loves Score	BestCoder Round #44	0	----%
5269-HDU	ZYB loves Xor I	BestCoder Round #44	0	----%
5270-HDU	ZYB loves Xor II	BestCoder Round #44	0	----%
5271-HDU	ZYB loves product	BestCoder Round #44	0	----%