2024

.gitmodules

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+[submodule "input"]
+	path = input
+	url = https://github.com/deckelmouck/adventofcode-input

2019/Day01/Solution.cs

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+using System;
+
+namespace adventofcode.Year2019.Day01;
+
+public class Solution : BaseSolution, ISolver
+{
+    public void SolvePart1()
+    {
+        string line;
+        //int counter = 0;
+        int neededfuel = 0;
+        // string filepath = Environment.CurrentDirectory + @"\2019\Day01\201901_1.txt";
+        //string filepath = Path.Combine(Environment.CurrentDirectory, "2019", "Day01", "201901_1.txt");
+        //string filepath = Path.Combine(Environment.CurrentDirectory, GetYear(), $"Day{GetDay()}", "input.txt");
+        string filepath = GetInputFilePath("201901_1.txt");
+
+        Console.WriteLine(filepath);
+
+        if(System.IO.File.Exists(filepath))
+        {
+            System.IO.StreamReader file = new System.IO.StreamReader(filepath);
+
+            while((line = file.ReadLine()) != null)
+            {
+                int mass = Convert.ToInt32(line);
+                int fuel = mass / 3 - 2;
+
+                neededfuel = neededfuel + fuel;
+                //Console.WriteLine(line);
+                //counter++;
+            }
+            //Console.WriteLine("{0} lines read.", counter.ToString());
+            Console.WriteLine("we need {0} fuel.", neededfuel);
+        }
+    }
+
+    public void SolvePart2()
+    {
+        string line;
+        //int counter = 0;
+        int neededfuel = 0;
+        //string filepath = Environment.CurrentDirectory + @"\2019\Day01\201901_1.txt";
+        string filepath = System.IO.Path.Combine(Environment.CurrentDirectory, "2019", "Day01", "201901_1.txt");
+
+        Console.WriteLine(filepath);
+
+        if(System.IO.File.Exists(filepath))
+        {
+            System.IO.StreamReader file = new System.IO.StreamReader(filepath);
+
+            while((line = file.ReadLine()) != null)
+            {
+                int mass = Convert.ToInt32(line);
+                int fuel = mass / 3 - 2;
+                int fueltotal = fuel;
+
+                while(fuel / 3 - 2 > 0)
+                {
+                    fuel = fuel / 3 - 2;
+                    fueltotal = fueltotal + fuel;
+                }
+
+                neededfuel = neededfuel + fueltotal;
+
+                //Console.WriteLine(line);
+                //counter++;
+            }
+            //Console.WriteLine("{0} lines read.", counter.ToString());
+            Console.WriteLine("we need {0} fuel.", neededfuel);
+        }
+    }
+}