C++ pyramid

#include <iostream>
#include <iomanip>
using namespace std;

void print_pyramid(int n){
    int k=0;
    check:
    if(n>=1 && n<=30){
        n*=2;
        for(int i=1;i<=n;i+=2){
            cout<<setw(n-k);
            for(int m=1;m<=i;m++){
                cout<<"*";
            }
            k++;
            cout<<endl;
        }
    }
    else{
        cout<<"Pick another height (must be between 1 and 30): ";
        cin>>n;cout<<endl;
        goto check;
    }
}

int main(){
    int n;

    cout<<"This program prints a 'pyramid' shape of \na specified height on the screen.\n\nhow high would you like the pyramid?: ";
    cin >> n;
    cout<<"\n";
    print_pyramid(n);

    return 0;
}