Given a square matrix of size , calculate the absolute difference between the sums of its diagonals.
The first line contains a single integer, . The next lines denote the matrix's rows, with each line containing space-separated integers describing the columns.
Print the absolute difference between the two sums of the matrix's diagonals as a single integer.
Sample Input: 3 11 2 4 4 5 6 10 8 -12
Sample Output: 15
What you will learn:
- get diagonals of a matrix
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