belajar borlan c++

Belajar borlan c++ :
membuat dua matrik, inilah langkah2nya :

#include <iostream.h>
#include <conio.h>
#include <iomanip.h>
#include <stdlib.h>
void main()
{
int jb, jk, i, j;
float arr1[10][10];
float arr2[10][10];
float arr3[10][10];
clrscr();
cout<<"Jumlah baris : ";cin>>jb;
cout<<"Jumlah kolom : ";cin>>jk;
cout<<" Data matriks A ";
cout<<"\n";
arr1[0][0]=0;
arr2[0][0]=0;
arr3[0][0]=0;
for (i = 1; i <=jb; i++)
{
for (j = 1; j <=jk; j++)
{
cout<<"Data ke "<<i<<"-"<<j ;cin>> arr1[i][j];
}
}
for (i = 1; i <=jb; i++)
{
for (j = 1; j <=jk; j++)
cout<<setw(8 )<<arr1[i][j];
cout<<"\n";
}
cout<<"\n";
cout<<"Data matriks B\n ";
for (i = 1; i <=jb; i++)
{
for (j = 1; j <=jk; j++)
{
cout<<"Data ke "<<i<<"-"<<j ;
cin>> arr2[i][j];
}
}
for (i = 1; i <=jb; i++)
{
for (j = 1; j <=jk; j++)
cout<<setw(8 )<<arr2[i][j];
cout<<"\n";
}
for (i = 1; i <=jb; i++)
{
for (j = 1; j <=jk; j++)

cout<<"\n";
}
for (i = 1; i <=jb; i++)
{
for (j = 1; j <=jk; j++)
cout<<setw(8)<<"Data ke "<<i<<"-"<<j<<arr3[i][j];
}
}