摘要: It is easy to see that for every fraction in the form(k > 0), we can always find two positive integers x and y,x ≥ y, such that: Now our question is: 阅读全文
posted @ 2017-09-06 23:21 于繁华求淡然 阅读(375) 评论(0) 推荐(0) 编辑