摘要：http://acm.hdu.edu.cn/showproblem.php?pid=1533 Going Home Problem Description On a grid map there are n little men and n houses. In each unit time, ev 阅读全文

摘要：http://acm.hdu.edu.cn/showproblem.php?pid=2795 Billboard Problem Description At the entrance to the university, there is a huge rectangular billboard 阅读全文

摘要：http://acm.hdu.edu.cn/showproblem.php?pid=1024 Max Sum Plus Plus Problem Description Now I think you have got an AC in Ignatius.L's "Max Sum" problem. 阅读全文