随笔分类 -  数论 组合数学

摘要:Problem F. ColorDescriptionRecently, Mr. Big recieved n flowers from his fans. He wants to recolor those flowers withm colors. The flowers are put in a l 阅读全文
posted @ 2016-09-04 22:46 快点说我帅 阅读(617) 评论(0) 推荐(0)