[HackerEarth] For a given prime number p find all the number of pairs (m, n) of positive integers such that 1 ≤ m , n ≤ p(p-1)* and p divides nm - mn. Output the result modulo 1000000007. - 题解

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题目信息
题号 P21483
标题 [HackerEarth] For a given prime number p find all the number of pairs (m, n) of positive integers such that 1 ≤ m , n ≤ p(p-1)* and p divides nm - mn. Output the result modulo 1000000007.
难度 普及
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