Structuri de date/ Bacnote

#include <stdio.h>
#include <conio.h>
#include <iostream>

using namespace std;

int ban(int S, int e, int n) {
    int p = 1, i = 0;
    while (p*e <= S && i < n) {
        p =p* e;
        i++;
    }
    return p;
}


void main() {
    int s, n, e, b, nr = 0;
    s = 400; // suma de bani
    e = 2; //(asta e exponentul, adica 2 la puterea n , ala de mai jos)
    n = 5;//reprezinta cea mai mare bancnota (2 la puterea 5 , 32, daca pui 6 cea mai mare bancnota e 64 lei)
    while (s > 0) {
        b = ban(s, e, n);
        cout << s / b << " bancnota de " << b << " lei" << endl;
        nr = nr + (s / b);
        s = s % b;
    }
    cout << nr << " bancnote";

    _getch();
}