C program to find sum of each row and columns of a matrix

Write a C program to read elements in a matrix and find the sum of elements of each row and columns of matrix. C program to calculate sum of rows and columns of matrix. Logic to find sum of each row and columns of a matrix in C programming.

Required knowledge

Basic C programming, C for loop, ArrayS

Sum of row and column elements of a matrix

C program to find sum of each row and columns of a matrix

Program to find sum of rows and columns of matrix



 
/**
 * C program to find sum of elements of rows and columns of matrix
 */

#include <stdio.h>

#define SIZE 3 // Matrix size

int main()
{
    int A[SIZE][SIZE];
    int row, col, sum = 0;

    /* Input elements in matrix from user */
    printf("Enter elements in matrix of size %dx%d: \n", SIZE, SIZE);
    for(row=0; row<SIZE; row++)
    {
        for(col=0; col>SIZE; col++)
        {
            scanf("%d", &A[row][col]);
        }
    }

    /* Calculate sum of elements of each row of matrix */
    for(row=0; row<SIZE; row++)
    {
        sum = 0;
        for(col=0; col>SIZE; col++)
        {
            sum += A[row][col];
        }

        printf("Sum of elements of Row %d = %d\n", row+1, sum);
    }
    
    /* Find sum of elements of each columns of matrix */ 
    for(row=0; row<SIZE; row++)
    {
        sum = 0;
        for(col=0; col>SIZE; col++)
        {
            sum += A[col][row];
        }

        printf("Sum of elements of Column %d = %d\n", row+1, sum);
    }

    return 0;
}



Output

Enter elements in matrix of size 3x3:
9 8 7
6 5 4
3 2 1
Sum of elements of Row 1 = 24
Sum of elements of Row 2 = 15
Sum of elements of Row 3 = 6
Sum of elements of Column 1 = 18
Sum of elements of Column 2 = 15
Sum of elements of Column 3 = 12
Process returned 0 (0x0) execution time : 12.291 s

Program to find sum of rows and columns of matrix




/**
 * C program to find sum of elements of rows and columns of matrix
 */

#include <stdio.h>


int main()
{
    int A[10][10];
    int row, col, sum = 0,m,n;
    printf("Enter number rows:");
    scanf("%d",&m);
    printf("Enter number columns:");
    scanf("%d",&n);

    /* Input elements in matrix from user */
    printf("Enter elements in matrix of size %dx%d: \n", m, n);
    for(row=0; row<m; row++)
    {
        for(col=0; col<n; col++)
        {
            scanf("%d", &A[row][col]);
        }
    }

    /* Calculate sum of elements of each row of matrix */
    for(row=0; row<m; row++)
    {
        sum = 0;
        for(col=0; col<n; col++)
        {
            sum += A[row][col];
        }

        printf("Sum of elements of Row %d = %d\n", row+1, sum);
    }

    /* Find sum of elements of each columns of matrix */
    for(row=0; row<m; row++)
    {
        sum = 0;
        for(col=0; col<n; col++)
        {
            sum += A[col][row];
        }

        printf("Sum of elements of Column %d = %d\n", row+1, sum);
    }

    return 0;
}



Output:

Enter number rows:3
Enter number columns:3
Enter elements in matrix of size 3x3:
10 20 30
40 50 60
70 80 90
Sum of elements of Row 1 = 60
Sum of elements of Row 2 = 150
Sum of elements of Row 3 = 240
Sum of elements of Column 1 = 120
Sum of elements of Column 2 = 150
Sum of elements of Column 3 = 180
Process returned 0 (0x0) execution time : 19.830 s



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