Pattern-/Butterfly at main · 20sinkypriya/Pattern- · GitHub

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//Butterfly pattern
#include <iostream>
using namespace std;

int main()
{
    int n;
    cout<<"Enter the Number of Rows ";
    cin>>n;

    for(int i=1; i<=n ; i++)
    {
        for(int j=1; j<=2*n ; j++)
        {
            if(j<=i || j>2*n-i)
            {
                cout<<"* ";
            }
            else
            {
                cout<<"  ";
            }
        }
        cout<<endl;
    }
       for(int i=n; i>=1 ; i--)
    {
        for(int j=1; j<=2*n ; j++)
        {
            if(j<=i || j>2*n-i)
            {
                cout<<"* ";
            }
            else
            {
                cout<<"  ";
            }
        }
        cout<<endl;
    }
    return 0;
}