# Write a program to input two m × n matrices and then calculate the sum of their corresponding elements and store it in a third m × n matrix

## C program to to input two m × n matrices and then calculate the sum of their corresponding elements and store it in a third m × n matrix

```#include <stdio.h>
#include <conio.h>
int main()
{
int i, j;
int rows1, cols1, rows2, cols2, rows_sum, cols_sum;
int mat1, mat2, sum;
clrscr();
printf("\n Enter the number of rows in the first matrix : ");
scanf("%d",&rows1);
printf("\n Enter the number of columns in the first matrix : ");
scanf("%d",&cols1);
printf("\n Enter the number of rows in the second matrix : ");
scanf("%d",&rows2);
printf("\n Enter the number of columns in the second matrix : ");
scanf("%d",&cols2);
if(rows1 != rows2 || cols1 != cols2)
{
printf("\n Number of rows and columns of both matrices must be equal");
getch();
exit();
}
rows_sum = rows1;
cols_sum = cols1;
printf("\n Enter the elements of the first matrix ");
for(i=0;i<rows1;i++)
{
for(j=0;j<cols1;j++)
{
scanf("%d",&mat1[i][j]);
}
}
printf("\n Enter the elements of the second matrix ");
for(i=0;i<rows2;i++)
{
for(j=0;j<cols2;j++)
{
scanf("%d",&mat2[i][j]);
}
}
for(i=0;i<rows_sum;i++)
{
for(j=0;j<cols_sum;j++)
sum[i][j] = mat1[i][j] + mat2[i][j];
}
printf("\n The elements of the resultant matrix are ");
for(i=0;i<rows_sum;i++)
{
printf("\n");
for(j=0;j<cols_sum;j++)
printf("\t %d", sum[i][j]);
}
return 0;
}

```

## Output

Enter the number of rows in the first matrix: 2
Enter the number of columns in the first matrix: 2
Enter the number of rows in the second matrix: 2
Enter the number of columns in the second matrix: 2
Enter the elements of the first matrix
1 2 3 4
Enter the elements of the second matrix
5 6 7 8
The elements of the resultant matrix are
6 8
10 12