摘要: ##B - Sum Problem In this problem, your task is to calculate SUM(n) = 1 + 2 + 3 + ... + n. Input The input will consist of a series of integers n, one 阅读全文
posted @ 2020-01-28 16:55 平和Kenn 阅读(188) 评论(0) 推荐(0) 编辑