public int GetErrorRate()
{
var retVal = 0;
foreach (var ticket in NearbyTickets)
{
var isValid = true;
foreach (var t in ticket)
{
if (AcceptableRanges.Any(i =>
Enumerable.Range(i.Min1, i.Max1 - i.Min1 + 1).Contains(t) ||
Enumerable.Range(i.Min2, i.Max2 - i.Min2 + 1).Contains(t)))
{
continue;
}
retVal += t;
isValid = false;
}
if (isValid)
{
ValidNearbyTickets.Add(ticket);
}
}
return(retVal);
}
public long GetDepartureAnswer()
{
ValidNearbyTickets.Add(MyTicket);
for (var ii = 0; ii < MyTicket.Count(); ii++)
{
var ticketVals = ValidNearbyTickets.Select(tVal => tVal[ii]).ToList();
foreach (var range in AcceptableRanges.Where(range => ticketVals.All(j =>
Enumerable.Range(range.Min1, range.Max1 - range.Min1 + 1).Contains(j) ||
Enumerable.Range(range.Min2, range.Max2 - range.Min2 + 1).Contains(j))))
{
range.TicketPositions.Add(ii);
}
}
// Figure out which ranges belong to which positions
while (AcceptableRanges.Any(i => i.TicketPositions.Count <int>() != 1))
{
var rangesWithSinglePosition = AcceptableRanges.Where(i => i.TicketPositions.Count() == 1).ToList();
var filledPositions = rangesWithSinglePosition.Select(i => i.TicketPositions.First()).ToList();
foreach (var val in filledPositions)
{
foreach (var range in AcceptableRanges.Where(i => i.TicketPositions.Count() > 1 && i.TicketPositions.Contains(val)))
{
range.TicketPositions.Remove(val);
}
}
}
//foreach (var range in AcceptableRanges.Where(i => i.Label.Contains("departure")))
//{
// retVal *= MyTicket[range.TicketPositions.First()];
//}
//return retVal;
return(AcceptableRanges.Where(i => i.Label.Contains("departure")).Aggregate <Range, long>(1, (current, range) => current * MyTicket[range.TicketPositions.First()]));
}
