Consider a N X N matrix where each element is row number divided by column number (integer division), i.e. mat[i][j] = floor((i+1)/(j+1)) where 0 <= i < N and 0 <= j < N. The task is to find the sum of all matrix element.
1 2 3 4 5 6 7 8 9 | n=int(raw_input()) matrix=[[[] for i in range(n)] for i in range(n)] sum=0 for i in range(n): for j in range(n): matrix[i][j]=floor((i+1)/(j+1)) sum=sum+matrix[i][j] print sum |