public static int Run(string input)
{
var sum = 0;
//input = _input;
var groups = InputUtils.SplitInputByBlankLines(input);
foreach (var group in groups)
{
var matchedChars = new List <char>();
var lines = InputUtils.SplitLinesIntoStringArray(group);
for (int j = 0; j < lines.Length; j++)
{
var line = lines[j];
if (j == 0)
{
matchedChars = lines[0].ToCharArray().ToList();
continue;
}
var stillMatchedChars = new List <char>(matchedChars);
for (int i = 0; i < matchedChars.Count; i++)
{
var matchedChar = matchedChars[i];
if (matchedChar >= 'a' && matchedChar <= 'z' && !line.Contains(matchedChar))
{
stillMatchedChars.Remove(matchedChar);
}
}
matchedChars = stillMatchedChars;
}
sum += matchedChars.Count;
}
return(sum);
}
public static int Run(string input)
{
var valid = 0;
var passports = InputUtils.SplitInputByBlankLines(input);
foreach (var passport in passports)
{
var passportDict = new Dictionary <string, string>();
var tokens = passport.Split(new char[] { '\r', '\n', ':', ' ' });
var validTokens = tokens.Where(x => x.Length > 0).ToList();
for (int i = 0; i < validTokens.Count(); i += 2)
{
passportDict.Add(validTokens[i], validTokens[i + 1]);
}
if (passportDict.ContainsKey("ecl") && passportDict.ContainsKey("pid") && passportDict.ContainsKey("eyr") && passportDict.ContainsKey("hcl") && passportDict.ContainsKey("byr") &&
passportDict.ContainsKey("iyr") && passportDict.ContainsKey("hgt"))
{
if (ValidateFields(passportDict))
{
valid++;
}
}
}
return(valid);
}
