capu_calc.cpp

#include <iostream>
using namespace std;

int main()
{
    int debut(0);
    do
    {
        cout << "de (>= 1) ? ";
        cin >> debut;
    } while (debut < 1);

    int fin(0);
    do
    {
        cout << "a (>= " << debut << ") ? ";
        cin >> fin;
    } while (fin < debut);

    /*******************************************
     * Completez le programme a partir d'ici.
     *******************************************/
    for (int i(debut); i <= fin; ++i)
    {
        int n = i;
        int k = 0;

        do
        {
            if (n % 3 == 0)
            {
                n = n + 4;
            }
            else if (n % 4 == 0)
            {
                n = n / 2;
            }
            else
            {
                n = n - 1;
            }

            k = k + 1;

        } while (n > 0);

        cout << i << " -> " << k << endl;
    }

    /*******************************************
     * Ne rien modifier apres cette ligne.
     *******************************************/

    return 0;
}