湖南省第九届大学生程序设计竞赛

http://210.33.181.162/acmhome/problemdetail.do?&method=showdetail&id=4598

http://210.33.181.162/acmhome/problemdetail.do?&method=showdetail&id=4599

http://210.33.181.162/acmhome/problemdetail.do?&method=showdetail&id=4600