摘要: Problem DescriptionThere are n balls with m colors. The possibility of that the color of the i-th ball is color j is ai,jai,1+ai,2+...+ai,m. If the nu... 阅读全文
posted @ 2015-11-22 14:59 UniqueColor 阅读(372) 评论(0) 推荐(1) 编辑