ADDITION OF TWO MATRICES IN C 

Program:-

#include<stdio.h>
int main(int argc, char *a[])
{
    int i,j,r,c,a1[10][10],r1,c1,b[10][10];
    //get input
    scanf("%d %d",&r,&c);
    for(i=0;i<r;i++)
    for(j=0;j<c;j++)
    scanf("%d",&a1[i][j]);
    scanf("%d %d",&r1,&c1);
    for(i=0;i<r1;i++)
    for(j=0;j<c1;j++)
    scanf("%d",&b[i][j]);
    //addition and print matrix
    if(r1==r & c==c1)
    for(i=0;i<r;i++)
   { for(j=0;j<c;j++)
    {a1[i][j]+=b[i][j];printf("%d",a1[i][j]); 
    if(j!=c-1)
   printf(" ");
}
if(i!=r-1)
printf("\n");}

}
Input :-

Output:-