feat: number-of-1-bits

Author: minji-go

number-of-1-bits/minji-go.java

@@ -1,15 +1,16 @@
 /**
- * <a href="https://leetcode.com/problems/number-of-1-bits/">week03-2.number-of-1-bits</a>
+ * <a href="https://leetcode.com/problems/number-of-1-bits/">week8-1.number-of-1-bits</a>
  * <li>Description: returns the number of set bits in its binary representation</li>
  * <li>Topics: Divide and Conquer, Bit Manipulation </li>
- * <li>Time Complexity: O(logN), Runtime 0ms        </li>
- * <li>Space Complexity: O(1), Memory 41.95MB       </li>
+ * <li>Time Complexity: O(K), Runtime 0ms       </li>
+ * <li>Space Complexity: O(1), Memory 40.57MB   </li>
  */
+
 class Solution {
     public int hammingWeight(int n) {
         int count = 0;
-        while(n != 0) {
-            n &= (n-1);
+        while (n != 0) {
+            n = n & (n - 1);
             count++;
         }
         return count;