Refactor day 4 puzzle

Flashky · Dec 4, 2023 · d6c2f25 · d6c2f25
1 parent 077a466
commit d6c2f25
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/src/main/java/com/adventofcode/flashk/day04/Card.java b/src/main/java/com/adventofcode/flashk/day04/Card.java
@@ -39,8 +39,7 @@ public Card(String input) {
     }
 
     public int calculateWinningPoints() {
-        return matchingNumbers.isEmpty() ?
-                0 : IntStream.range(1, matchingNumbers.size()).reduce(1, (a,b) -> a*2);
+        return (int) Math.floor(Math.pow(2, (double) matchingNumbers.size()-1));
     }
 
     public int totalMatchingNumbers() {