摘要: Hey, welcome to HDOJ(Hangzhou Dianzi University Online Judge). In this problem, your task is to calculate SUM(n) = 1 + 2 + 3 + … + n.**Input T... 阅读全文
posted @ 2015-03-24 16:11 Eric_keke 阅读(107) 评论(0) 推荐(0) 编辑