https://www.hackerrank.com/challenges/diagonal-difference/problem?isFullScreen=true Diagonal Difference | HackerRankCalculate the absolute difference of sums across the two diagonals of a square matrix.www.hackerrank.comGiven a square matrix, calculate the absolute difference between the sums of its diagonals.For example, the square matrix is shown below:1 2 34 5 69 8 9 The left-to-right diago..