[LC] feat: number-of-bits

Author: HaJunYoo

number-of-1-bits/hajunyoo.py

@@ -0,0 +1,9 @@
+class Solution:
+    def hammingWeight(self, n: int) -> int:
+        n = int(n)
+        cnt = 0
+        while n > 0:
+            if n % 2 == 1:
+                cnt += 1
+            n = n // 2
+        return cnt