#P9124. Expected Inversions

    ID: 5206 传统题 3000ms 512MiB 尝试: 3 已通过: 3 难度: 8 上传者: 标签>CF2400数学DFS树状数组差分数据结构概率论图论

Expected Inversions

Source: Super League of Chinese College Students Algorithm Design 2022, Contest 10.

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