Calculate absolute diffrence between of diagonals of square Matrix
Given a square matrix, calculate
the absolute difference between the sums of its diagonals.
For example, the square matrix array is shown below:
1 2 3
4 5 6
9 8 9
The Sum left-to-right diagonal = 1+5+9=15
The Sum right to left diagonal = 3+5+9=17
Their absolute difference is = |17-15| =2
Coding
