2018年6月2日
Codeforces Round #486 (Div. 3) CD
摘要： C. Equal Sums C. Equal Sums You are given kk sequences of integers. The length of the ii-th sequence equals to nini. You have to choose exactly two se 阅读全文
posted @ 2018-06-02 10:22 starry_sky 阅读(542) 评论(0) 推荐(0) 编辑