From 6c8132483165142ae90c605dfdd3006f82b10267 Mon Sep 17 00:00:00 2001
From: "Dr. Matthias Ratajczak" <m.ratajczak@hzdr.de>
Date: Thu, 18 Aug 2022 18:26:24 +0200
Subject: [PATCH] remove dead code in 51

---
 src/euler54/src/card.rs | 21 +--------------------
 1 file changed, 1 insertion(+), 20 deletions(-)

diff --git a/src/euler54/src/card.rs b/src/euler54/src/card.rs
index cd07939..9e08ec2 100644
--- a/src/euler54/src/card.rs
+++ b/src/euler54/src/card.rs
@@ -85,22 +85,6 @@ impl Cards {
         self.value_hashmap.contains_key(value)
     }
 }
-
-trait Contains<T> {
-    fn contains_value(&self, x: &T) -> bool;
-}
-
-impl Contains<Value> for &CardsArray {
-    fn contains_value(&self, x: &Value) -> bool {
-        for card in self.iter() {
-            if card.value == *x {
-                return true;
-            }
-        }
-        false
-    }
-}
-
 pub trait CardTrait {
     fn to_value_hashmap(&self) -> HashMap<Value, usize>;
     fn to_suit_hashset(&self) -> HashSet<Suit>;
@@ -117,10 +101,7 @@ impl CardTrait for CardsArray {
     }
 
     fn to_value_hashmap(&self) -> HashMap<Value, usize> {
-        let mut hm = HashMap::new();
-        for value in self.to_value_hashset() {
-            hm.insert(value, 0);
-        }
+        let mut hm = HashMap::from_iter(self.to_value_hashset().iter().map(|v| (*v, 0)));
         for card in self {
             *hm.get_mut(&card.value).unwrap() += 1;
         }