90 lines
3.8 KiB
C#
90 lines
3.8 KiB
C#
using System.Collections;
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using System.Net.Mail;
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namespace AdventOfCode;
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public class Day02 : BaseDay
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{
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private readonly string _input;
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private int valGames;
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private int powerSum;
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public Day02()
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{
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_input = File.ReadAllText(InputFilePath);
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StringReader reader = new(_input);
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Part1(reader);
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reader = new(_input);
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Part2(reader);
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}
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public void Part1(StringReader r)
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{
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string line = r.ReadLine();
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string[] colors = {"red", "green", "blue"}; //cube colors to search for
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int[] validNum = {12, 13, 14}; //the valid number of cubes in the bag for each color
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int games = 1;
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while(line != null)
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{
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//Console.WriteLine("Game #" + games);
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bool validColors = true;
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foreach(string color in colors)
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{
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int currInd = 0;
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while(line.IndexOf(color, currInd) != -1 && validColors)
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{
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int cubeCount = Char.GetNumericValue(line.ElementAt(line.IndexOf(color, currInd)-3)) > 0 ?
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int.Parse(line.Substring(line.IndexOf(color, currInd)-3, 2)) :
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(int)Char.GetNumericValue(line.ElementAt(line.IndexOf(color, currInd)-2));
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//store the number of cubes in an extremely convuluted and probably overly complicated variable
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//(it checks if the number is 2 digits)
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//Console.WriteLine(cubeCount + " " + color);
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if(cubeCount > validNum[Array.IndexOf(colors, color)]) //if there are more cubes of the color shown than there should be
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{
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validColors = false; //game is invalid
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//Console.WriteLine("Invalid game");
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}
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currInd = line.IndexOf(color, currInd) + color.Length;
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}
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}
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if(validColors)
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valGames += games;
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//Console.WriteLine("Current valid game ID total: " + validGamesTotal);
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games++;
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line = r.ReadLine();
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}
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}
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public void Part2(StringReader r)
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{
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string line = r.ReadLine();
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string[] colors = {"red", "green", "blue"}; //cube colors to search for
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//int i = 0;
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while(line != null)
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{
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int[] minCubes = new int[3]; //minimum cubes required for game to be possible
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//Console.WriteLine("Game #" + games);
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foreach(string color in colors)
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{
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int currInd = 0;
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while(line.IndexOf(color, currInd) != -1)
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{
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int cubeCount = Char.GetNumericValue(line.ElementAt(line.IndexOf(color, currInd)-3)) > 0 ?
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int.Parse(line.Substring(line.IndexOf(color, currInd)-3, 2)) :
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(int)Char.GetNumericValue(line.ElementAt(line.IndexOf(color, currInd)-2));
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//store the number of cubes in an extremely convuluted and probably overly complicated variable
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//(it checks if the number is 2 digits)
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//Console.WriteLine(cubeCount + " " + color);
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if(cubeCount > minCubes[Array.IndexOf(colors, color)])
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minCubes[Array.IndexOf(colors, color)] = cubeCount;
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currInd = line.IndexOf(color, currInd) + color.Length;
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}
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//Console.WriteLine(color + " minimum cubes: " + minCubes[Array.IndexOf(colors, color)]);
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}
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powerSum += minCubes[0] * minCubes[1] * minCubes[2];
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line = r.ReadLine();
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}
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}
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public override ValueTask<string> Solve_1() => new(valGames.ToString());
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public override ValueTask<string> Solve_2() => new(powerSum.ToString());
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} |