2020年4月14日
Codeforces Round #634 (Div. 3)
摘要： 第一cf rank进500，虽然是div3 == "A. Candies and Two Sisters" 题意： 求a+b=n，且0 include include include include include include include include include using name 阅读全文
posted @ 2020-04-14 11:13 0x4f 阅读(217) 评论(0) 推荐(0) 编辑