摘要: # [AtCoder Beginner Contest 312](https://atcoder.jp/contests/abc312) ## [A - Chord (atcoder.jp)](https://atcoder.jp/contests/abc312/tasks/abc312_a) `` 阅读全文
posted @ 2023-07-30 22:40 Ke_scholar 阅读(49) 评论(0) 推荐(0) 编辑