50分大佬帮忙看看

#include <iostream>
using namespace std;
int n;
int main()
{
    cin >> n;
    for(int j=0;j<n;j++)cout<<"N";
    cout<<endl;
	for (int i = 1; i < (1 << n); i++)
    {
        for(int j=0;j<n;j++){
            if(i&(1<<j)){
                cout<<"Y";
            }
        	else{
        		cout<<"N";
			}
		}
        cout << endl;
    }
    return 0;
}

真的谢谢了！！！