Below is the program to add two matrices.
#include <stdio.h>
int main(){
int a,b,c,d;
printf("Enter number of rows in first matrix:\n");
printf("Enter number of columns in first matrix:\n");
printf("Enter number of rows in second matrix:\n");
printf("Enter number of columns in second matrix:\n");
scanf("%d %d %d %d",&a,&b,&c,&d);
int m1[a][b];
int m2[c][d];
printf("Enter elements of first matrix:\n");
int i,j;
for(i=0;i<a;i++){
for(j=0;j<b;j++){
scanf("%d",&m1[i][j]);
}
}
printf("Enter elements of second matrix:\n");
int x,y;
for(x=0;x<c;x++){
for(y=0;y<d;y++){
scanf("%d",&m2[x][y]);
}
}
if(a==c && b==d){
printf("Matrix addition is possible\n");
}
else{
printf("Matrix addition is not possible\n");
}
int m3[a][b];
for(i=0;i<a;i++){
for(j=0;j<b;j++){
m3[i][j]=m1[i][j]+m2[i][j];
}
}
for(i=0;i<a;i++){
for(j=0;j<b;j++){
printf("%d ",m3[i][j]);
}
printf("\n\n");
}
return 0;
}Output 1:
Enter number of rows in first matrix:
Enter number of columns in first matrix:
Enter number of rows in second matrix:
Enter number of columns in second matrix:
2
2
2
2
Enter elements of first matrix:
4
3
5
2
Enter elements of second matrix:
5
3
4
7
Matrix addition is possible
9 6
9 9
