2020年4月7日
CF w1d1 B. Expansion coefficient of the array
摘要： Let's call an array of non negative integers a1,a2,…,an a k extension for some non negative integer k if for all possible pairs of indices 1≤i,j≤n the 阅读全文
posted @ 2020-04-07 23:52 LiangYC1021 阅读(122) 评论(0) 推荐(0)
CF w1d1 C. The Party and Sweets
摘要： n boys and m girls came to the party. Each boy presented each girl some integer number of sweets (possibly zero). All boys are numbered with integers 阅读全文
posted @ 2020-04-07 23:52 LiangYC1021 阅读(137) 评论(0) 推荐(0)
CF w1d1 A. A pile of stones
摘要： A. A pile of stones Vasya has a pile, that consists of some number of stones. n times he either took one stone from the pile or added one stone to the 阅读全文
posted @ 2020-04-07 23:51 LiangYC1021 阅读(195) 评论(0) 推荐(0)