public Day19() : base(19, 2020, "")
{
string[] problemParts = Input.Split("\n\n");
foreach (string line in problemParts[0].Split("\n"))
{
new StringRule(line);
}
int countOne = 0;
int countTwo = 0;
// Get the sets of rules we care about
HashSet <string> baseRule = StringRule.GetMatches(0);
HashSet <string> frontRule = StringRule.GetMatches(42);
HashSet <string> backRule = StringRule.GetMatches(31);
// Check each string in the input
foreach (string line in problemParts[1].Split("\n"))
{
if (baseRule.Contains(line))
{
countOne++;
}
if (PartTwoMatches(line, frontRule, backRule, 0))
{
countTwo++;
}
}
partOne = countOne.ToString();
partTwo = countTwo.ToString();
}