WAP for addition of matrix.

#include<iostream.h>

#include<conio.h>

void main()

{

 int a[4][4],b[4][4],c[4][4],n,m,i,j;

 cout<<"\n enter size of rows :";

 cin>>n;

 cout<<"\n enter size of collumns  :";

 cin>>m;

 cout<<"\n enter element of 2d array :";

for(i=1;i<=n;i++)

{

for(j=1;j<=m;j++)

{

cin>>a[i][j];

}

}

 cout<<"\n first matrix \n\n\n:";

for(i=1;i<=n;i++)

{

for(j=1;j<=m;j++)

{

cout<<"\t"<<a[i][j];

}

cout<<"\n\n";

}

 cout<<"\n enter same size of rows :";

 cin>>n;

 cout<<"\n enter same size of collumns  :";

 cin>>m;

 cout<<"\n enter element of 2d array :";

for(i=1;i<=n;i++)

{

for(j=1;j<=m;j++)

{

cin>>b[i][j];

}

}

 cout<<"\n second matrix \n\n\n:";

for(i=1;i<=n;i++)

{

for(j=1;j<=m;j++)

{

cout<<"\t"<<b[i][j];

}

cout<<"\n\n";

}

for(i=1;i<=n;i++)

{

 for(j=1;j<=m;j++)

 {

  c[i][j]=a[i][j]+b[i][j];

 }

}

 cout<<"\n addition of matrix is \n\n\n:";

for(i=1;i<=n;i++)

{

for(j=1;j<=m;j++)

{

cout<<"\t"<<c[i][j];

}

cout<<"\n\n";

}

 getch();

 clrscr();

 }