write a program to add subtract any two matrices in c
#include <stdio.h>
#include <stdlib.h>
void main ()
{
int i, j, m, n;
char user_decision;
int matrix1[10][10],matrix2[10][10],sum[10][10],diff[10][10];
printf("Enter number of rows : ");
scanf("%d", &m);
printf("Enter number of columns : ");
scanf("%d", &n);
printf("\n");
for (i = 0; i < m; i++)
{
for (j = 0; j < n; j++)
{
printf("Enter element of matrix 1[%d][%d]: ", i, j);
scanf("%d", &matrix1[i][j]);
}
}
printf("\n");
for (i = 0; i < m; i++)
{
for (j = 0; j < n; j++)
{
printf("Enter elements of matrix 2[%d][%d]: ", i, j);
scanf("%d", &matrix2[i][j]);
}
}
printf("\n");
printf("type a if you want to add or type s if you want to subtract the matrix: ");
fflush(stdin);
scanf("%c",&user_decision);
printf("\n....Your resultant matrix is....\n\n");
if(user_decision=='a' || user_decision =='A')
{
for (i = 0; i < m; i++)
{
for (j = 0; j < n; j++)
{
sum[i][j] = matrix1[i][j] + matrix2[i][j];
}
}
for (i = 0; i < m; i++)
{
for (j = 0; j < n; j++)
{
printf("%d\t", sum[i][j]);
}
printf("\n");
}
}
else if(user_decision=='s' || user_decision =='S')
{
for (i = 0; i < m; i++)
{
for (j = 0; j < n; j++)
{
diff[i][j] = matrix1[i][j] - matrix2[i][j];
}
}
for (i = 0; i < m; i++)
{
for (j = 0; j < n; j++)
{
printf("%d\t", diff[i][j]);
}
printf("\n");
}
}
else
printf("Invalid selection");
}