day3: shorter bits_to_int

1 files changed, 1 insertions, 5 deletions

diff --git a/3.py b/3.py
index fdfe203..7750fa1 100644
--- a/3.py
+++ b/3.py
@@ -17,11 +17,7 @@ def most_common(bits: Iterable[bool]) -> bool:
     return count1 >= length - count1
 
 def bits_to_int(bits: Bits) -> int:
-    ret: int = 0
-    for i, b in enumerate(reversed(bits)):
-        if b:
-            ret += 2 ** i
-    return ret
+    return sum(b * 2 ** i for i, b in enumerate(reversed(bits)))
 
 def part1(nums: Input) -> int:
     nbits: int = len(nums[0])