摘要: Codeforces Round 993 (Div. 4) 2024.12.15 rank289 +123:1381->1504 A Cube is given an integer $n$. She wants to know how many ordered pairs of positive 阅读全文
posted @ 2024-12-16 20:13 Jkke 阅读(84) 评论(0) 推荐(0)