C Exercises: Find sum of right diagonals of a matrix
C Array: Exercise-23 with Solution
Write a program in C to find sum of right diagonals of a matrix.
Pictorial Presentation:

Sample Solution:
C Code:
#include <stdio.h>
void main()
{
int i,j,arr1[50][50],sum=0,n;
printf("\n\nFind sum of right diagonals of a matrix :\n");
printf("---------------------------------------\n");
printf("Input the size of the square matrix : ");
scanf("%d", &n);
printf("Input elements in the first matrix :\n");
for(i=0;i<n;i++)
{
for(j=0;j<n;j++)
{
printf("element - [%d],[%d] : ",i,j);
scanf("%d",&arr1[i][j]);
if (i==j) sum= sum+arr1[i][j];
}
}
printf("The matrix is :\n");
for(i=0;i<n;i++)
{
for(j=0;j<n ;j++)
printf("% 4d",arr1[i][j]);
printf("\n");
}
printf("Addition of the right Diagonal elements is :%d\n",sum);
}
Sample Output:
Find sum of right diagonals of a matrix : --------------------------------------- Input the size of the square matrix : 2 Input elements in the first matrix : element - [0],[0] : 1 element - [0],[1] : 2 element - [1],[0] : 3 element - [1],[1] : 4 The matrix is : 1 2 3 4 Addition of the right Diagonal elements is :5
Flowchart:

C Programming Code Editor:
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