| A. Dreamoon and Ranking Collection |
查看题解 | 水题 |
| B. Dreamoon Likes Permutations |
查看题解 | 前后缀 |
| C. Dreamoon Likes Coloring |
查看题解 | 后缀和+构造 |
| D. Dreamoon Likes Sequences |
查看题解 | 构造 |
Codeforces Round #631 (Div. 2) 题解
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转载自blog.csdn.net/weixin_45031646/article/details/105307817
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