神的不在场证明

摘要： a % k = (a * d) % (k * d) / d证明:(两步搞掂)要证a % k = (a * d) % (k * d) / d只要证 a % k * d= (a * d) % (k * d)而上式是显然的:可以设 a = k * t + m两边乘d有 a * d = k * d * t + m * d于是有 (a * d) % (k * d) = m * d = a % k * d证毕... 阅读全文