B is too hard ig

2 files changed, 68 insertions, 0 deletions

diff --git a/2020/10/Program.cs b/2020/10/Program.cs
new file mode 100644
index 0000000..16ef0ff
--- /dev/null
+++ b/2020/10/Program.cs
@@ -0,0 +1,37 @@
+using System;

+using System.IO;

+using System.Linq;

+

+namespace AOC

+{

+    internal class Run

+    {

+        private static int PartOne(int[] data)

+        {

+            int prev = 0, three = 1, one = 0;

+            for (int i = 0; i < data.Length; i++)

+            {

+                if (data[i] - prev == 3) three++;

+                else one++;

+

+                prev = data[i];

+            }

+

+            return one * three;

+        }

+        

+        private static int PartTwo(int[] data)

+        {

+            return 0;

+        }

+

+        public static void Main(string[] args)

+        {

+            string text = File.ReadAllText(@"C:\Users\bornerma\Desktop\input.txt");

+            string[] numsStr = text.Split('\n');

+            int[] nums = Array.ConvertAll(numsStr, int.Parse).OrderBy(i => i).ToArray();

+            Console.WriteLine(PartOne(nums));

+            Console.WriteLine(PartTwo(nums));

+        }

+    }

+}
\ No newline at end of file
diff --git a/2020/10/input b/2020/10/input
new file mode 100644
index 0000000..be5c492
--- /dev/null
+++ b/2020/10/input
@@ -0,0 +1,31 @@
+28
+33
+18
+42
+31
+14
+46
+20
+48
+47
+24
+23
+49
+45
+19
+38
+39
+11
+1
+32
+25
+35
+8
+17
+7
+9
+4
+2
+34
+10
+3
\ No newline at end of file