合集-codeforces

Codeforces Round 993 (Div. 4)
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(98) 评论(0) 推荐(0)
Codeforces Round 991 (Div. 3)
摘要：Codeforces Round 991 (Div. 3) 2024.12.6 rank 1559 rating 1314->1381 A 模拟 B 给定一数组，你可以任意操作：a[i-1]+1&&a[i+1]-1 或者 a[i-1]-1&&a[i+1]+1。问是否可以使数组全为相同的数字。 C 给 阅读全文
posted @ 2024-12-07 18:55 Jkke 阅读(146) 评论(0) 推荐(0)