number of 1 bits solution

Author: devyejin

number-of-1-bits/devyejin.py

@@ -0,0 +1,7 @@
+class Solution:
+    def hammingWeight(self, n: int) -> int:
+        result = 0
+        while n:
+            result += n % 2
+            n //= 2
+        return result