butterfly pattern in c++ code example

Example: butterfly pattern in c++

#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n;
	cin>>n;
	
	for(int i=1;i<=n;i++)
	{
		for(int j=1;j<=i;j++){
			cout<<"*";
		}
		int space=2*n-2*i;
		for(int j =1;j<=space;j++)
		{
			cout<<" ";
		}
		for(int j =1;j<=i;j++)
		{
			cout<<"*";
		}
		cout<<endl;
	}
	
	for(int i=n;i>=1;i--)
	{
		for(int j=1;j<=i;j++){
			cout<<"*";
		}
		int space=2*n-2*i;
		for(int j =1;j<=space;j++)
		{
			cout<<" ";
		}
		for(int j=1;j<=i;j++)
		{
			cout<<"*";
		}
		cout<<endl;
	}
	return 0;
}