From 1f177db7f118ede6652b7217de5e8d9fcbe1ce2e Mon Sep 17 00:00:00 2001
From: Santo Cariotti <santo@dcariotti.me>
Date: Thu, 29 Feb 2024 19:51:08 +0100
Subject: ocaml(day4): fix map-filter

---
 2023/ocaml/day4/bin/main.ml | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

(limited to '2023/ocaml')

diff --git a/2023/ocaml/day4/bin/main.ml b/2023/ocaml/day4/bin/main.ml
index 9d1a6ad..fdc3553 100644
--- a/2023/ocaml/day4/bin/main.ml
+++ b/2023/ocaml/day4/bin/main.ml
@@ -30,11 +30,7 @@ let rec parse ?(result = 0) lines =
 
       let k =
         Int.shift_left 1
-          (List.length
-             (List.map
-                (fun win -> if List.mem win plays = true then 1 else 0)
-                winnings
-             |> List.filter (fun i -> i = 1))
+          (List.length (List.filter (fun win -> List.mem win plays) winnings)
           - 1)
       in
 
-- 
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