Sithis/AdventOfCode2025
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refactor: Change Input loading to class instead of reader

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This commit is contained in:
Sithis 2025-12-06 10:14:35 +01:00
parent 1a4e35b61c
commit 3723115a4a
7 changed files with 53 additions and 38 deletions
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9
AdventOfCode2025/Day1.cs
View file

@ -1,15 +1,17 @@
using AdventOfCode2025.Inputs;
namespace AdventOfCode2025;
public sealed class Day1 : Solution
{
private readonly Input input = new(1);
private const int MaxArrow = 100;
public override string SolvePart1()
{
var arrow = 50;
var zeroCounter = 0;
IEnumerable<string> lines = InputReader.ReadLines(1);
foreach (var line in lines)
foreach (var line in input.Lines)
{
var number = int.Parse(line[1..]);
arrow = line.First() switch
@ -33,9 +35,8 @@ public sealed class Day1 : Solution
{
var arrow = 50;
var zeroCounter = 0;
IEnumerable<string> lines = InputReader.ReadLines(1);
foreach (var line in lines)
foreach (var line in input.Lines)
{
var number = int.Parse(line[1..]);
zeroCounter += number / MaxArrow;

9
AdventOfCode2025/Day2.cs
View file

@ -1,11 +1,13 @@
using AdventOfCode2025.Inputs;
namespace AdventOfCode2025;
public class Day2 : Solution
{
private readonly Input input = new(2);
public override string SolvePart1()
{
return InputReader
.ReadLines(2)
return input.Lines
.SelectMany(ToRanges)
.Select(ToLimit)
.SelectMany(GetIds)
@ -16,8 +18,7 @@ public class Day2 : Solution
public override string SolvePart2()
{
return InputReader
.ReadLines(2)
return input.Lines
.SelectMany(ToRanges)
.Select(ToLimit)
.SelectMany(GetIds)

36
AdventOfCode2025/Day3.cs
View file

@ -1,31 +1,23 @@
using AdventOfCode2025.Inputs;
namespace AdventOfCode2025;
public class Day3 : Solution
{
public override string SolvePart1() =>
InputReader
.ReadLines(3)
.Select(line => line.Select(c => c - '0').ToArray())
.Select(bank => GetLargestJolts(bank))
.Sum()
.ToString();
private readonly Input input = new(3);
public override string SolvePart2() =>
InputReader
.ReadLines(3)
.Select(line => line.Select(c => c - '0').ToArray())
.Select(bank => GetLargestJolts(bank, 12))
.Sum()
.ToString();
public override string SolvePart1() => input.GetLines(x => ParseLine(x, 2)).Sum().ToString();
public override string SolvePart2() => input.GetLines(x => ParseLine(x, 12)).Sum().ToString();
private static long GetLargestJolts(int[] bank, int numberOfJolts = 2)
{
var total = 0L;
var from = 0;
var to = bank.Length - numberOfJolts;
for (var i = numberOfJolts - 1; i >= 0; i--)
int to = bank.Length - numberOfJolts;
for (int i = numberOfJolts - 1; i >= 0; i--)
{
var maxIndexI = GetIndexOfMax(bank, from, to);
int maxIndexI = GetIndexOfMax(bank, from, to);
total += bank[maxIndexI] * (long)Math.Pow(10, i);
from = maxIndexI + 1;
to = bank.Length - i;
@ -44,13 +36,13 @@ public class Day3 : Solution
private static int GetIndexOfMax(int[] array, int from, int to)
{
var maxIndex = from;
int maxIndex = from;
if (from + 1 > to)
{
return maxIndex;
}
for (var i = from + 1; i <= to; i++)
for (int i = from + 1; i <= to; i++)
{
if (array[i] > array[maxIndex])
{
@ -60,4 +52,10 @@ public class Day3 : Solution
return maxIndex;
}
private static long ParseLine(string line, int numberOfJolts)
{
int[] bank = line.Select(c => c - '0').ToArray();
return GetLargestJolts(bank, numberOfJolts);
}
}

7
AdventOfCode2025/Day4.cs
View file

@ -1,13 +1,16 @@
using AdventOfCode2025.Inputs;
namespace AdventOfCode2025;
public class Day4 : Solution
{
private readonly Input input = new(4);
private const char NoneChar = '.';
private const char PaperChar = '@';
public override string SolvePart1()
{
var grid = PaddingField(InputReader.ReadLines(4))
var grid = PaddingField(input.Lines)
.Select(line => line.ToCharArray())
.ToArray();
@ -16,7 +19,7 @@ public class Day4 : Solution
public override string SolvePart2()
{
var grid = PaddingField(InputReader.ReadLines(4))
var grid = PaddingField(input.Lines)
.Select(line => line.ToCharArray())
.ToArray();
List<(int, int)> paperCanBeRemoved;

7
AdventOfCode2025/Day5.cs
View file

@ -1,10 +1,13 @@
using AdventOfCode2025.Inputs;
namespace AdventOfCode2025;
public class Day5 : Solution
{
private readonly Input input = new(5);
public override string SolvePart1()
{
List<string> lines = InputReader.ReadLines(5).ToList();
List<string> lines = input.Lines.ToList();
List<Range> freshRanges = GetFreshRanges(lines);
int freshIngredients = lines[(freshRanges.Count + 1)..].Select(long.Parse).Count(id => IsFresh(id, freshRanges));
return freshIngredients.ToString();
@ -12,7 +15,7 @@ public class Day5 : Solution
public override string SolvePart2()
{
List<string> lines = InputReader.ReadLines(5).ToList();
List<string> lines = input.Lines.ToList();
List<Range> ranges = GetFreshRanges(lines).OrderBy(x => x.From).ThenBy(x => x.To).ToList();
var merged = new List<Range>();

7
AdventOfCode2025/InputReader.cs
View file

@ -1,7 +0,0 @@
namespace AdventOfCode2025;
public static class InputReader
{
private const string BasePath = "../../../Inputs/";
public static IEnumerable<string> ReadLines(int day, int partNumber = 1) => File.ReadAllLines($"{BasePath}Day{day}_{partNumber}.txt");
}

16
AdventOfCode2025/Inputs/Input.cs Normal file
View file

@ -0,0 +1,16 @@
namespace AdventOfCode2025.Inputs;
public sealed record Input(int Day, int PartNumber = 1)
{
private const string BasePath = "../../../Inputs/";
public string ToPath() => BasePath + $"Day{Day}_{PartNumber}.txt";
}
public static class InputExtensions
{
extension(Input input)
{
public IEnumerable<string> Lines => File.ReadAllLines(input.ToPath());
public IEnumerable<T> GetLines<T>(Func<string, T> parser) => input.Lines.Select(parser);
}
}