From 990a5900f7853c13d137205afa437a3d92d73c97 Mon Sep 17 00:00:00 2001
From: Boxfriend <cawills394@gmail.com>
Date: Mon, 1 Dec 2025 13:20:37 -0500
Subject: [PATCH] day one part one

---
 AdventOfCode2025/Program.cs        |  7 ++++++-
 AdventOfCode2025/SecretEntrance.cs | 22 ++++++++++++++++++++++
 2 files changed, 28 insertions(+), 1 deletion(-)
 create mode 100644 AdventOfCode2025/SecretEntrance.cs

diff --git a/AdventOfCode2025/Program.cs b/AdventOfCode2025/Program.cs
index 779c0be..db00078 100644
--- a/AdventOfCode2025/Program.cs
+++ b/AdventOfCode2025/Program.cs
@@ -1 +1,6 @@
-Console.WriteLine("Advent of Code 2025");
+using AdventOfCode2025;
+
+Console.WriteLine("Advent of Code 2025");
+
+var dayOneInput = await File.ReadAllTextAsync("./Input/DayOne.txt");
+AdventSolver<SecretEntrance>.Solve(dayOneInput, 1, "Secret Entrance");
\ No newline at end of file
diff --git a/AdventOfCode2025/SecretEntrance.cs b/AdventOfCode2025/SecretEntrance.cs
new file mode 100644
index 0000000..316adcf
--- /dev/null
+++ b/AdventOfCode2025/SecretEntrance.cs
@@ -0,0 +1,22 @@
+namespace AdventOfCode2025;
+
+public class SecretEntrance : IAdventSolution
+{
+    public AdventSolution Solve(string input)
+    {
+        var lines = input.Split('\n', StringSplitOptions.RemoveEmptyEntries | StringSplitOptions.TrimEntries);
+        
+        var current = 50;
+        var password = 0;
+        foreach (var line in lines)
+        {
+            var direction = line[0] == 'L' ? -1 : 1;
+            var distance =  int.Parse(line.Substring(1)) * direction;
+            current += distance;
+            current %= 100;
+            if(current == 0) password++;
+        }
+        
+        return new AdventSolution(password.ToString(), null);
+    }
+}
\ No newline at end of file