Soap__的博客

题目描述：给定一个数列{AnA_nAn​}，考虑所有数对(i,j)(i,j)(i,j)，(i∈[1,n],j∈[1,n])(i\in[1,n],j\in[1,n])(i∈[1,n],j∈[1,n])，求所有的lowbit(A[i],A[j])lowbit(A[i],A[j])lowbit(A[i],A[j])之和答案对199907210507199907210507199907210507取模数据范围：1<=n<=1051 <= n <= 10^51<=n<=105