Cleaning

diff --git a/AdventOfCode2017/Day19.fs b/AdventOfCode2017/Day19.fs
index bb10ce5..281bd64 100644 (file)
--- a/AdventOfCode2017/Day19.fs
+++ b/AdventOfCode2017/Day19.fs
@@ -3,18 +3,18 @@
 open System
 
 let followThePath (lines : string[]) : string * int =
-    let rec next (i, j) (di, dj) (str : string) (n : int) =
+    let rec next (i, j) (di, dj) str n =
         let i', j' = i + di, j + dj
         let c = lines.[i'].[j']
         if c = '+' then
-            let pos =
+            let nextDir =
                 [ '-', 0, 1; '|', -1, 0; '-', 0, -1; '|', 1, 0 ]
                 |> List.pick (
                     fun (c', ndi, ndj) ->
                         let ni, nj = i' + ndi, j' + ndj
                         if (ni, nj) <> (i, j) && (Char.IsLetter lines.[ni].[nj] || lines.[ni].[nj] = c') then Some (ndi, ndj) else None
                 )
-            next (i', j') pos str (n + 1)
+            next (i', j') nextDir str (n + 1)
         elif Char.IsWhiteSpace c |> not then
             next (i', j') (di, dj) (if Char.IsLetter c then str + string c else str) (n + 1)
         else