45 lines
1.5 KiB
C#
45 lines
1.5 KiB
C#
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using System;
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using System.Linq;
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using System.IO;
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namespace AOC2017
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{
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class BScottDay4 : BScottSolution
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{
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public override string Name => "Day 4: High-Entropy Passphrases";
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public override void Run()
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{
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string[] input = File.ReadAllLines("BScottDay4.txt");
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Console.WriteLine($"Part 1 Answer: {GetValidPassPhrasesPart1(input)}");
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Console.WriteLine($"Part 2 Answer: {GetValidPassPhrasesPart2(input)}");
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}
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static int GetValidPassPhrasesPart1(string[] input)
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{
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int count = 0;
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for (int i = 0; i < input.Length; i++)
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{
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string[] passStrings = input[i].Split(new char[] {' '});
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string[] distinctStrings = passStrings.Distinct().ToArray();
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if (passStrings.Length == distinctStrings.Length)
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count++;
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}
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return count;
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}
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static int GetValidPassPhrasesPart2(string[] input)
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{
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int count = 0;
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for (int i = 0; i < input.Length; i++)
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{
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string[] passStrings = Array.ConvertAll(input[i].Split(new char[] { ' ' }), s => string.Concat(s.OrderBy(c => c)));
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string[] distinctStrings = passStrings.Distinct().ToArray();
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if (passStrings.Length == distinctStrings.Length)
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count++;
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}
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return count;
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}
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}
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}
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