public bool IsLuckyTicket(Ticket ticket, ILuckyTicketStrategy strategy)
{
try
{
return(strategy.IsLuckyTicket(ticket));
}
catch (InvalidLuckyTicketStrategy ex)
{
throw new InvalidLuckyTicketStrategy("Invalid lucky ticket strategy", ex);
}
}
/// <summary>
/// Returns count of the lucky tickets with the specified alghoritm to find lucky ticket
/// </summary>
/// <param name="rank">The count of digits in the ticket</param>
/// <param name="strategy">Alghoritm to find lucky tickets</param>
/// <returns>Count of the lucky tickets</returns>
public int CalculateLuckyTickets(int rank, ILuckyTicketStrategy strategy)
{
int count = 0;
int min;
int max = (int)Math.Pow(10, rank) - 1;
try
{
for (min = 1; min <= max; min++)
{
if (strategy.IsLuckyTicket(Ticket.CreateTicket(rank, min)))
{
count++;
}
}
}
catch (InvalidLuckyTicketStrategy ex)
{
throw new InvalidLuckyTicketStrategy("Invalid lucky ticket strategy", ex);
}
return(count);
}
