2013年5月30日
hdu 4309 Seikimatsu Occult Tonneru（网络流，4级）
摘要： Seikimatsu Occult TonneruTime Limit: 12000/6000 MS (Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 1357Accepted Submission(s): 317Problem DescriptionDuring the world war, to avoid the upcoming Carpet-bombing from The Third Reich, people in Heaven Empire went to Great Tunne 阅读全文
posted @ 2013-05-30 15:33 剑不飞 阅读(270) 评论(0) 推荐(0) 编辑
hdu 4307 Matrix(网络流，dinic,4级)
摘要： MatrixTime Limit: 4000/2000 MS (Java/Others)Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 829Accepted Submission(s): 213Problem DescriptionLet A be a 1*N matrix, and each element of A is either 0 or 1. You are to find such A that maximize D=(A*B-C)*AT, where B is a given N*N matrix w 阅读全文
posted @ 2013-05-30 11:34 剑不飞 阅读(233) 评论(0) 推荐(0) 编辑
hdu 4303 Hourai Jeweled(树形DP，5级)
摘要： Hourai JeweledTime Limit: 4000/2000 MS (Java/Others)Memory Limit: 163840/163840 K (Java/Others)Total Submission(s): 808Accepted Submission(s): 289Problem DescriptionKaguya Houraisan was once a princess of the Lunarians, a race of people living on the Moon. She was exiled to Earth over a thousand yea 阅读全文
posted @ 2013-05-30 09:31 剑不飞 阅读(206) 评论(0) 推荐(0) 编辑