#P9135. Random

    ID: 5217 传统题 1000ms 64MiB 尝试: 2 已通过: 2 难度: 1 上传者: 标签>CF800数学数论概率DP概率论2022杭电多校

Random

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