发现数据可能有点水

P3806 【模板】点分治 1

<https://liu-cheng-ao.blog.uoj.ac/blog/2969>
by yukimianyan @ 2023-10-20 20:12:50


@[yukimianyan](/user/509229) 感谢大佬!
by 巨佬嘲讽我 @ 2023-10-20 20:49:23


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