Program Perulangan Dalam C++

#include <cstdlib>
#include <iostream>

using namespace std;

class perulangan{
    public:
        perulangan(){n=4;}
        void ulang_for(int);
        void ulang_while(int);
    private:
        int n;
};

int main(int argc, char *argv[]){
 int x;
 cout<<"=================================="<<endl;
 cout<<"     PROGRAM PERULANGAN      "<<endl;
 cout<<"=================================="<<endl<<endl;
 cout << "Masukkan batasan : "; cin >> x;
 cout << endl;

    perulangan X;
    cout << "Menggunakan cara iteratif" << endl;
    X.ulang_for(x);
    cout << "Menggunakan cara while" << endl;
    X.ulang_while(x);
    cout << endl;

    system("pause");
    return 0;
}

void perulangan::ulang_for(int n){
    for (int i=1; i<=n; i++){
        cout << i << " ";
    }
    cout << endl;
}

void perulangan::ulang_while(int n){
    int i=1;
    while (n>=i) {
        cout << n << " ";
        n--;
    }
    cout << endl;
}



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