solve: number-of-1-bits

Author: coloryourlife

number-of-1-bits/Raft.py

@@ -0,0 +1,10 @@
+class Solution:
+    def hammingWeight(self, n: int) -> int:
+        res = 0
+        while n:
+            res += n % 2
+            n = n >> 1
+        return res
+# T: logn
+# S: 1
+