From d4577c74e8fbb1143050cb2880f08307eb953945 Mon Sep 17 00:00:00 2001
From: Tomasz Chojnacki <tomaszchojnacki2001@gmail.com>
Date: Tue, 6 Dec 2022 12:17:31 +0100
Subject: Finish day 6

---
 aoc-2022-dotnet/Day06/Program.fs | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)
 create mode 100644 aoc-2022-dotnet/Day06/Program.fs

(limited to 'aoc-2022-dotnet/Day06/Program.fs')

diff --git a/aoc-2022-dotnet/Day06/Program.fs b/aoc-2022-dotnet/Day06/Program.fs
new file mode 100644
index 0000000..75a5ffb
--- /dev/null
+++ b/aoc-2022-dotnet/Day06/Program.fs
@@ -0,0 +1,18 @@
+open System.IO
+
+let solution n =
+    Seq.windowed n
+    >> Seq.findIndex (Set >> Set.count >> (=) n)
+    >> (+) n
+
+assert
+    [ ("mjqjpqmgbljsphdztnvjfqwrcgsmlb", 7, 19)
+      ("bvwbjplbgvbhsrlpgdmjqwftvncz", 5, 23)
+      ("nppdvjthqldpwncqszvftbrmjlhg", 6, 23)
+      ("nznrnfrfntjfmvfwmzdfjlvtqnbhcprsg", 10, 29)
+      ("zcfzfwzzqfrljwzlrfnpqdbhtmscgvjw", 11, 26) ]
+    |> List.forall (fun (test, s4, s14) -> solution 4 test = s4 && solution 14 test = s14)
+
+let input = File.ReadAllText "input.txt"
+printfn "%d" <| solution 4 input
+printfn "%d" <| solution 14 input
-- 
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