Diamond Pattern in C++

/* Program to print diamond pattern 2 */
#include <stdio.h>
#include <conio.h>
#include<iostream.h>
void main()
{
clrscr();

int i, j, k,n;

cout<<"Enter the number of stars: ";
cin>>n;

cout<<"\n---------------Diamond pattern-------------------\n";

for (i = 1; i <= n; i++)
{
for (j = 0; j < (n - i); j++)
cout<<" ";
for (j = 1; j <= i; j++)
cout<<"*";

for (k = 1; k < i; k++)
cout<<"*";

cout<<"\n";
}


for (i = n - 1; i >= 1; i--)
{
for (j = 0; j < (n - i); j++)
cout<<" ";

for (j = 1; j <= i; j++)
cout<<"*";
for (k = 1; k < i; k++)
cout<<"*";
cout<<"\n";
}
cout<<"\n";
cout<<"\n----------------------------------\n";
getch();
}