protected override string SolvePartOne()
{
var rows = Input.SplitByNewline();
var count = 0;
foreach (var row in rows)
{
var toboggan = new TobogganPassword(row);
var appearances = toboggan.Password.Count(x => x == toboggan.Letter);
if (toboggan.FirstNumber <= appearances && appearances <= toboggan.SecondNumber)
{
count++;
}
}
return(count.ToString());
}
protected override string SolvePartTwo()
{
var rows = Input.SplitByNewline();
var count = 0;
foreach (var row in rows)
{
var toboggan = new TobogganPassword(row);
var firstLetterIs = toboggan.Password[toboggan.FirstNumber - 1] == toboggan.Letter;
var secondLetterIs = toboggan.Password[toboggan.SecondNumber - 1] == toboggan.Letter;
if (firstLetterIs && !secondLetterIs || !firstLetterIs && secondLetterIs)
{
count++;
}
}
return(count.ToString());
}