Diagonal Difference C and Java Solution

Problem:

Given a square matrix of size , calculate the absolute difference between the sums of its diagonals.

Input Format

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.

Output Format

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

Explanation

The primary diagonal is: 
11
      5
            -12

Sum across the primary diagonal: 11 + 5 - 12 = 4

The secondary diagonal is:
            4
      5
10
Sum across the secondary diagonal: 4 + 5 + 10 = 19 
Difference: |4 - 19| = 15

Solution:

// C Solution
int main()
{
    int a[100][100],n,c=0,d=0,i,j,sum=0;
    scanf("%d",&n);
    for(i=0;i
// Java Solution
import java.io.*;
import java.util.*;

public class VeryBigSum {

    public static void main(String[] args) {
       
        Scanner sc = new Scanner(System.in);
        sc.nextLine();
        String[]numArray = sc.nextLine().split(" ");
        
        long sum = 0;
        for(String num:numArray){
            if(!num.equals("")){
                sum+=Long.parseLong(num);
            }
        }
        System.out.println(sum);
    }
}