[HackerEarth] Find the number of pairs of non negative integers(n,m),such that 1 ≤ n<m ≤ k, where 2 ≤ k ≤ 1000000 and n|m^2 - 1 and m|n^2 - 1 ? - 题解

暂无题解

题目信息
题号 P16930
标题 [HackerEarth] Find the number of pairs of non negative integers(n,m),such that 1 ≤ n<m ≤ k, where 2 ≤ k ≤ 1000000 and n|m^2 - 1 and m|n^2 - 1 ?
难度 普及-
返回题目