2020年6月12日
Codeforces Round #646 (Div. 2) 题解
摘要： A. Odd Selection 网址：https://codeforces.com/contest/1363/problem/A Shubham has an array a of size n, and wants to select exactly x elements from it, su 阅读全文
posted @ 2020-06-12 14:36 大秦帝国 阅读(567) 评论(0) 推荐(0)