void createCurrentPath(char* path, int idCourant)
{
    if ( idCourant <= 9)
    {
        strcat (path‚ "000%d.ppm\0", idCourant);
    }
    else if ( idCourant <= 99 )
    {
        strcat (path‚ "00%d.ppm\0", idCourant);
    }
    else
    {
        strcat (path‚ "0%d.ppm\0", idCourant);
    }
}