# 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.

Example

Input

```Input elements in array:
1 2 3
4 5 6
7 8 9```

Output

```Sum of row 1 = 6
Sum of row 2 = 15
...
...
Sum of column 3 = 18```

## Required knowledge

Basic C programming, For loop, Array

Must know -

Sum of rows and columns of a matrix is defined as -

## 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: 1 2 3 4 5 6 7 8 9 Sum of elements of Row 1 = 6 Sum of elements of Row 2 = 15 Sum of elements of Row 3 = 24 Sum of elements of Column 1 = 12 Sum of elements of Column 2 = 15 Sum of elements of Column 3 = 18`

Happy coding ;)

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