public string RunB()
{
int total = 0;
Utils.Load <string>("./2020/Day02.input", (s, l) =>
{
StringView stv = new StringView(s);
stv.Split(out int min, "-", out int max, " ", out char letter, ": ", out string pw);
if (pw[min - 1] == letter ^ pw[max - 1] == letter)
{
total++;
}
return(false);
});
public StringView Substring(int start, int length = Int32.MaxValue)
{
StringView stv = new StringView(_base);
stv._start = _start + start;
stv._length = length;
if (stv._start >= _base.Length)
{
stv._start = _base.Length - 1;
}
if (stv._length > _base.Length)
{
stv._length = _base.Length - stv._start;
}
return(stv);
}