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Author: NinePiece2

Solutions/0371-sum-of-two-integers/README.md

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+<p>Given two integers <code>a</code> and <code>b</code>, return <em>the sum of the two integers without using the operators</em> <code>+</code> <em>and</em> <code>-</code>.</p>
+
+<p>&nbsp;</p>
+<p><strong class="example">Example 1:</strong></p>
+<pre><strong>Input:</strong> a = 1, b = 2
+<strong>Output:</strong> 3
+</pre><p><strong class="example">Example 2:</strong></p>
+<pre><strong>Input:</strong> a = 2, b = 3
+<strong>Output:</strong> 5
+</pre>
+<p>&nbsp;</p>
+<p><strong>Constraints:</strong></p>
+
+<ul>
+	<li><code>-1000 &lt;= a, b &lt;= 1000</code></li>
+</ul>

Solutions/0371-sum-of-two-integers/solution.py

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+class Solution:
+    def getSum(self, a: int, b: int) -> int:
+        a, b = a & 0xFFFFFFFF, b & 0xFFFFFFFF
+        while b:
+            carry = ((a & b) << 1) & 0xFFFFFFFF
+            a, b = a ^ b, carry
+
+        return a if a < 0x80000000 else ~(a ^ 0xFFFFFFFF)