2024年2月27日
Ball in Berland
摘要： This is a programing problem on Codeforces with a difficulty score of 1400. Its solution is based on the Inclusion-Exclusion principle. https://codefo 阅读全文
posted @ 2024-02-27 20:40 _Yxc 阅读(10) 评论(0) 推荐(0)