dsrics

摘要： "原题链接" [TOC] 题外话 有点时间没打代码了， 本来就菜，现在快菜的只会hello world了 牛客比赛我就不写题意了 A 思路 我是找规律做的 $当 x n 时， 直接输出数组之和$ $当x include include include include include include 阅读全文