2015年12月2日
drawer principle in Combinatorics
摘要： Problem 1: Given an array of real number with length (n2+ 1) A:a1, a2, ... , an2+1.Prove that there is either an increasing or a decreasing subarray o... 阅读全文
posted @ 2015-12-02 20:17 astoninfer 阅读(165) 评论(0) 推荐(0) 编辑