Day 6

jindraivanek · jindraivanek · commit cbdf66bd8df6 · 2022-12-06T08:03:09.000+01:00
diff --git a/day6.fsx b/day6.fsx
@@ -0,0 +1,15 @@
+let text = System.IO.File.ReadAllText("day6.input") |> Seq.toArray
+
+let getMarkerIndex markerSize =
+    text
+    |> Seq.windowed markerSize
+    |> Seq.indexed
+    |> Seq.find (fun (_, xs) -> xs |> Seq.distinct |> Seq.length = markerSize)
+    |> fst
+    |> fun i -> i + markerSize
+
+let part1 = getMarkerIndex 4
+printfn $"PART1: {part1}"
+
+let part2 = getMarkerIndex 14
+printfn $"PART2: {part2}"
diff --git a/day6.input b/day6.input
@@ -0,0 +1 @@
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