How to print this program

Question

*
* *
* *

Answer 1

#include <iostream>
using namespace std;

int main() {
for(int i=0;i<3;i++){
for(int j=2-i;j>0;j--) {
cout<<" ";
}
cout<<"*";
for(int k=0;k<2*i-1;k++){
cout<<" ";
}
if(i!=0)
cout<<"*";
cout<<endl;
}
return 0;
}

Answer 2

#include <iostream>
using namespace std;

int main() {
int i,j,n;
for(i=0;i<3;i++)
{
for(n=4;n>i;n--)
{
cout << " ";
}
for(j=0;j<i+1;j++)
{
if(i==2&&j==1){
cout << " ";
continue;
}
cout << "* ";
}
cout << "\n";
}
return 0;
}

Answer 3

cout << " *";
cout << " * *";
cout << "* *";