[2k25] Add day 1

Days/Day5.cs

@@ -1,121 +0,0 @@
-using Spectre.Console;
-
-namespace AdventOfCode.Days;
-
-public class Day5 : Day
-{
-    public override int Number => 5;
-    public override string Name => "Print Queue";
-
-    public override void RunPart1(bool display = true)
-    {
-        var result = 0;
-
-        var precedences = new HashSet<int>?[100];
-
-        var readingPrecedences = true;
-        foreach (var line in Input.AsSpan().EnumerateLines())
-        {
-            if (line.IsWhiteSpace())
-            {
-                readingPrecedences = false;
-
-                continue;
-            }
-
-            if (readingPrecedences)
-            {
-                var split = line.Split('|');
-                split.MoveNext();
-
-                var ruleTarget = int.Parse(line[split.Current]);
-
-                split.MoveNext();
-
-                var ruleNumber = int.Parse(line[split.Current]);
-
-                if (precedences[ruleTarget] is not { } precedenceSet)
-                {
-                    precedenceSet = [ ruleNumber ];
-                    precedences[ruleTarget] = precedenceSet;
-                }
-                else
-                {
-                    precedenceSet.Add(ruleNumber);
-                }
-            }
-            else
-            {
-                result += CheckLine(line);
-            }
-        }
-
-        if (display)
-        {
-            AnsiConsole.MarkupLine($"[green]Sum of middle page numbers: [yellow]{result}[/][/]");
-        }
-
-        return;
-
-        int CheckLine(ReadOnlySpan<char> line)
-        {
-            Span<int> positions = stackalloc int[100];
-
-            // Read line to get positions
-            var position = 1;
-            foreach (var range in line.Split(','))
-            {
-                var number = int.Parse(line[range]);
-
-                positions[number] = position;
-
-                position++;
-            }
-
-            var middlePosition = (position - 1) / 2;
-            var middleNumber = 0;
-
-            var index = 0;
-            // Check if positions respect precedence rules
-            foreach (var range in line.Split(','))
-            {
-                var number = int.Parse(line[range]);
-
-                // Fetch middle number
-                if (index == middlePosition)
-                {
-                    middleNumber = number;
-                }
-                index++;
-
-                if (precedences[number] is not { } precedenceSet)
-                {
-                    continue;
-                }
-
-                var numberPosition = positions[number];
-
-                // Check all precedence rules for numbers in the list
-                foreach (var nextNumber in precedenceSet)
-                {
-                    var nextNumberPosition = positions[nextNumber];
-
-                    if (nextNumberPosition != 0 && numberPosition >= nextNumberPosition)
-                    {
-                        return 0;
-                    }
-                }
-            }
-
-            return middleNumber;
-        }
-    }
-
-    public override void RunPart2(bool display = true)
-    {
-        // if (display)
-        // {
-        //     AnsiConsole.MarkupLine($"[green]Number of safe reports: [yellow]{xmasCount}[/][/]");
-        // }
-    }
-}