18 lines
652 B
C#
18 lines
652 B
C#
namespace AOC2015;
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/// <summary>
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/// Day 8: <a href="https://adventofcode.com/2015/day/8"/>
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/// </summary>
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public sealed partial class Day08() : Day(2015, 8, "Matchsticks")
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{
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[GeneratedRegex("""^"(\\x..|\\.|.)*"$""")]
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private static partial Regex CharSet();
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private static int CharCount(string arg) => CharSet().Match(arg).Groups[1].Captures.Count;
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private static int EncodedCount(string arg) => 2 + arg.Sum(c => c is '\\' or '\"' ? 2 : 1);
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public override object Part1() => Input.Sum(line => line.Length) - Input.Sum(CharCount);
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public override object Part2() => Input.Sum(EncodedCount) - Input.Sum(line => line.Length);
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}
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