2025 day 2 and 3 + benchmarks

Author: helloserve

2025/helloserve.com.AdventOfCode.Test/Day01.cs

@@ -8,7 +8,8 @@ public sealed class Day01
 	public void Part1(string filename, string expected)
 	{
 		AdventOfCode.Day01 day01 = new();
-		var result = day01.Part1(filename);
+		day01.Filename = filename;
+		var result = day01.Part1();
 		Assert.AreEqual(expected, result);
 	}
 
@@ -17,7 +18,8 @@ public void Part1(string filename, string expected)
 	public void Part2(string filename, string expected)
 	{
 		AdventOfCode.Day01 day01 = new();
-		var result = day01.Part2(filename);
+		day01.Filename = filename;
+		var result = day01.Part2();
 		Assert.AreEqual(expected, result);
 	}
 

2025/helloserve.com.AdventOfCode.Test/Day02.cs

@@ -0,0 +1,37 @@
+namespace helloserve.com.AdventOfCode.Test;
+
+[TestClass]
+public class Day02
+{
+	[TestMethod]
+	[DataRow("Day02.txt", "1227775554")]
+	public void Day02_Part1(string filename, string expected)
+	{
+		AdventOfCode.Day02 day02 = new();
+		day02.Filename = filename;
+		var result = day02.Part1();
+		Assert.AreEqual(expected, result);
+	}
+
+	[TestMethod]
+	[DataRow("Day02.txt", "4174379265")]
+	public void Day02_Part2(string filename, string expected)
+	{
+		AdventOfCode.Day02 day02 = new();
+		day02.Filename = filename;
+		var result = day02.Part2();
+		Assert.AreEqual(expected, result);
+	}
+
+	[TestMethod]
+	[DataRow(1188511885, true)]
+	[DataRow(222220, false)]
+	[DataRow(222222, true)]
+	[DataRow(38593859, true)]
+	[DataRow(82882882, false)]
+	[DataRow(808080, true)]
+	public void Day02_IsExtendedId_Test(long value, bool expected)
+	{
+		Assert.AreEqual(expected, Range.IsExtendedInvalidId(value));
+	}
+}

2025/helloserve.com.AdventOfCode.Test/Day02.txt

@@ -0,0 +1 @@
+11-22,95-115,998-1012,1188511880-1188511890,222220-222224,1698522-1698528,446443-446449,38593856-38593862,565653-565659,824824821-824824827,2121212118-2121212124

2025/helloserve.com.AdventOfCode.Test/Day03.cs

@@ -0,0 +1,49 @@
+namespace helloserve.com.AdventOfCode.Test;
+
+[TestClass]
+public class Day03
+{
+	[TestMethod]
+	[DataRow("Day03.txt", "357")]
+	public void Day03_Part1_Test(string filename, string expected)
+	{
+		var day03 = new AdventOfCode.Day03();
+		day03.Filename = filename;
+		var actual = day03.Part1();
+		Assert.AreEqual(expected, actual);
+	}
+
+	[TestMethod]
+	[DataRow("Day03.txt", "3121910778619")]
+	public void Day03_Part2_Test(string filename, string expected)
+	{
+		var day03 = new AdventOfCode.Day03();
+		day03.Filename = filename;
+		var actual = day03.Part2();
+		Assert.AreEqual(expected, actual);
+	}
+
+	[TestMethod]
+	[DataRow("818181911112111", 92)]
+	[DataRow("811111111111119", 89)]
+	[DataRow("234234234234278", 78)]
+	[DataRow("987654321111111", 98)]
+	[DataRow("5342626167342261132346432442524535654423854254336833422424525424435362223322423132824617223244222225", 88)]
+	[DataRow("3858362282172", 88)]
+	public void Day03_BatteryBank_Part1_Test(string bank, int expected)
+	{
+		var b = new BatteryBank(bank, 2);
+		Assert.AreEqual(expected, b.BankJoltage);
+	}
+
+	[TestMethod]
+	[DataRow("818181911112111", 888911112111)]
+	[DataRow("811111111111119", 811111111119)]
+	[DataRow("234234234234278", 434234234278)]
+	[DataRow("987654321111111", 987654321111)]
+	public void Day03_BatteryBank_Part2_Test(string bank, long expected)
+	{
+		var b = new BatteryBank(bank, 12);
+		Assert.AreEqual(expected, b.BankJoltage);
+	}
+}

2025/helloserve.com.AdventOfCode.Test/Day03.txt

@@ -0,0 +1,4 @@
+987654321111111
+811111111111119
+234234234234278
+818181911112111

2025/helloserve.com.AdventOfCode.Test/helloserve.com.AdventOfCode.Test.csproj

@@ -16,6 +16,12 @@
     <None Update="Day01.txt">
       <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
     </None>
+    <None Update="Day03.txt">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
+    <None Update="Day02.txt">
+      <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
+    </None>
   </ItemGroup>
 
 </Project>

2025/helloserve.com.AdventOfCode/Base.cs

@@ -1,14 +1,24 @@
 namespace helloserve.com.AdventOfCode;
 public abstract class Base
 {
-	public T[] ReadInput<T>(string filename, Func<string, T> parseLine)
+	public abstract string Filename { get; set; }
+
+	public T[] ReadMultiLineInput<T>(string filename, Func<string, T> parseLine)
 	{
 		var allText = File.ReadAllText(filename);
 		return allText.Split(new[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries)
 			.Select(o => parseLine(o))
 			.ToArray();
 	}
 
-	public abstract string Part1(string filename);
-	public abstract string Part2(string filename);
+	public T[] ReadSingleLineInput<T>(string filename, Func<string, T> parseValue, char separator = ',')
+	{
+		var allText = File.ReadAllText(filename);
+		return allText.Split(new[] { separator }, StringSplitOptions.RemoveEmptyEntries)
+			.Select(o => parseValue(o))
+			.ToArray();
+	}
+
+	public abstract string Part1();
+	public abstract string Part2();
 }

2025/helloserve.com.AdventOfCode/BenchmarkDotNet.Artifacts/helloserve.com.AdventOfCode.Day01-20251203-170243.log

@@ -0,0 +1,5 @@
+// Validating benchmarks:
+//    * Assembly helloserve.com.AdventOfCode which defines benchmarks is non-optimized
+Benchmark was built without optimization enabled (most probably a DEBUG configuration). Please, build it in RELEASE.
+If you want to debug the benchmarks, please see https://benchmarkdotnet.org/articles/guides/troubleshooting.html#debugging-benchmarks.
+