Program that performs addition of 2 matrix using friend function

```#include <iostream.h>
#include <iomanip.h>
#include <conio.h>

class matrix
{
int **p,row,col;
public:
void getdata(void);
void display(void);
};

void matrix :: getdata(void)
{
clrscr();
cout<<\"Enter Size of Row:-\";
cin>>row;
p=new int *[row];
cout<<\"Enter size of Coulumn:-\";
cin>>col;
cout<<\"\\nEnter Data for Matrix of size \"<<row<<\"*\"<<col<<endl;
for(int i=0;i<row;i++)
{
p[i]=new int [col];
}
//scaning value
for(int a=0;a<row;a++)
{
for(int b=0;b<col;b++)
{
cin>>p[a][b];
}
}
}

void matrix :: display(void)
{
cout<<\"\\n\\n\\n\\n\";
cout<<\"Display Function\\n\\n\";
for(int i=0;i<row;i++)
{
for(int j=0;j<col;j++)
{
cout<<setw(5)<<p[i][j];
}
cout<<endl;
}
}

{
int result[10][10];
if(a.row==b.row && a.col==b.col)
{
for(int i=0;i<a.row;i++)
{
for(int j=0;j<a.col;j++)
{
result[i][j]=a.p[i][j]+b.p[i][j];
}
}
//displaying
for(int x=0;x<a.row;x++)
{
for(int y=0;y<a.col;y++)
{
cout<<setw(5)<<result[x][y];
}
cout<<endl;
}
}
else
cout<<\"Invalid Matrix Addition Occurs as size differs\\n\";
}

void main()
{
matrix o1,o2;
o1.getdata();
o2.getdata();
clrscr();
o1.display();
o2.display();
getch();
clrscr();
getch();
}
```

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