#P9128. Ball

    ID: 5210 传统题 4000ms 512MiB 尝试: 2 已通过: 2 难度: 6 上传者: 标签>CF1900排序数据结构数论树状数组分治2022杭电多校

Ball

Source: Super League of Chinese College Students Algorithm Design 2022, Contest 1 by HDU.

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