feat: sum-of-two-integers

Author: minji-go

sum-of-two-integers/minji-go.java

@@ -0,0 +1,17 @@
+/**
+ * <a href="https://leetcode.com/problems/sum-of-two-integers/">week9-4. sum-of-two-integers</a>
+ * <li>Description: Given two integers a and b, return the sum of the two integers without using the operators + and -.</li>
+ * <li>Topics: Math, Bit Manipulation           </li>
+ * <li>Time Complexity: O(1), Runtime 0ms       </li>
+ * <li>Space Complexity: O(1), Memory 40.51MB   </li>
+ */
+class Solution {
+    public int getSum(int a, int b) {
+        while (b != 0) {
+            int tmp = (a & b) << 1;
+            a = (a ^ b);
+            b = tmp;
+        }
+        return a;
+    }
+}