Matrix Addition

Write a program to perform matrix addition. Assume only square matrices of the same dimension.

Input Format:

The input consists of (2*(m*m)+1) integers.

The first integer corresponds to m, the number of rows/columns in the matrix.

The next m*m integers correspond to the elements in the first matrix.

The last m*m elements correspond to the elements in the second matrix. The elements are read in row-wise order, the first row first, then second row and so on. Assume that the maximum value of m is 10.

Sample Input and Output:

Enter the number of rows and columns in 2 matrices

2

Enter the elements in the first matrix

4 5

6 9

Enter the elements in the second matrix

1 2

3 4

5 7

9 13

Program Code:

#include<stdio.h>

#include<malloc.h>

void find_Sum(int **a,int **b, int m, int n);

int** create1(int m, int n)

{

    int **a, i;

    a= (int **)malloc(m*sizeof(int *));

    for(i=0; i<m; i++)

    {

        *(a+i) = (int *)malloc(n*sizeof(int ));

    }

    return a;

}

int** create2(int m, int n)

{

    int **b, i;

    b= (int **)malloc(m*sizeof(int *));

    for(i=0; i<m; i++)

    {

        *(b+i) = (int *)malloc(n*sizeof(int ));

    }

    return b;

}

void read1(int **a, int m, int n)

{

    int i, j;

    for(i=0; i<m; i++)

    {

        for(j=0; j<n; j++)

        {

            scanf("%d", (*(a+i)+j));

        }

    }

}

void read2(int **b, int m, int n)

{

    int i, j;

    for(i=0; i<m; i++)

    {

        for(j=0; j<n; j++)

        {

            scanf("%d", (*(b+i)+j));

        }

    }

}

void find_Sum(int **a,int **b, int m, int n)

{

    int i, j;

    //int sum=0;

    for(i=0; i<m; i++)

    {

        for(j=0; j<n; j++)

          {

              printf("%d ",(*(*(a+i)+j)) + (*(*(b+i)+j)));

          }

          printf("\n");

    }

    //return sum;

}

int main()

{

    int **a, m, n,**b;

 printf("Enter the number of rows and columns in 2 matrices\n");

    scanf("%d",&m);

    n=m;

    printf("Enter the elements in the first matrix\n");

    a = create1(m,n);

    read1(a,m,n);

    printf("Enter the elements in the second matrix\n");

    b = create2(m,n);

    read2(b,m,n);

    find_Sum(a,b,m,n); 

    return 0;

}