Write a C program to perform addition of two matrices

In this article, we will write a C program to perform the addition of two matrices. 

ALGORITHM: 

Step 1: Start 

Step21: for i is 0 to 2 by step 1 for j is 0 to 2 by step 1 

Step 3: Read a[i][j],b[i][j] 

Step 4: goto step 2 

Step 5: calculate c[i][j]=a[i][j]+b[i][j] 

Step 6: goto step 2 

Step 7: Print c[i][j] 

Step 8: Stop

Write a C program to perform the addition of two matrices

#include <stdio.h>
#include <conio.h>

void main()
{
	int a[3][3], b[3][3], c[3][3];
	int i, j;
	clrscr();
	printf("ENTER A MATRIX\n");
	for (i = 0; i < 3; i++)
	{
		for (j = 0; j < 3; j++)
			scanf("%d", &a[i][j]);
	}
	printf("ENTER B MATRIX\n");
	for (i = 0; i < 3; i++)
	{
		for (j = 0; j < 3; j++)
			scanf("%d", &b[i][j]);
	}
	for (i = 0; i < 3; i++)
	{
		for (j = 0; j < 3; j++)
			c[i][j] = a[i][j] + b[i][j];
	}
	printf(" After addition of two matrices :\n");
	for (i = 0; i < 3; i++)
	{
		for (j = 0; j < 3; j++)
		{
			printf("%d\t", c[i][j]);
		}
		printf("\n");
	}
	getch();
}

INPUT:

ENTER a MATRIX
1 2 3
4 5 6
7 8 9
ENTER b MATRIX
1 1 1
1 1 1
1 1 1

OUTPUT:

After addition of two matrices is..
2 3 4
5 6 7
8 9 10  

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