public int CalculatePrizeAmount()
{
int result = 0;
int numberOfOrders = 0;
int numberOfDays = 0;
int.TryParse(_input[0], out numberOfDays);
//positive integer d(1 <= d <= 5000).
if (numberOfDays < 1 || numberOfDays > 5000 || _input.Length < 1 || _input.Length > 5000)
{
throw new Exception("registered number of days is not allowed. positive integer d such that 1 <= d <= 5000.");
}
if (numberOfDays > 0)
{
DailyPrizeDraw previous = null;
DailyPrizeDraw current = null;
for (int i = 1; i < _input.Length; i++)
{
if (i > 1)
{
current = new DailyPrizeDraw(_input[i], previous);
}
else
{
current = new DailyPrizeDraw(_input[i]);
}
numberOfOrders += current.OrderCount;
if (numberOfOrders > 100000)
{
throw new Exception("number of orders exceeds campaign limit of 100000.");
}
previous = current;
result += current.CalculatePrizeAmount();
}
}
return(result);
}
public DailyPrizeDraw(string input, DailyPrizeDraw previousDay)
{
_input = input;
_previousDay = previousDay;
}