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Author: NinePiece2

Solutions/0067-add-binary/README.md

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+<p>Given two binary strings <code>a</code> and <code>b</code>, return <em>their sum as a binary string</em>.</p>
+
+<p>&nbsp;</p>
+<p><strong class="example">Example 1:</strong></p>
+<pre><strong>Input:</strong> a = "11", b = "1"
+<strong>Output:</strong> "100"
+</pre><p><strong class="example">Example 2:</strong></p>
+<pre><strong>Input:</strong> a = "1010", b = "1011"
+<strong>Output:</strong> "10101"
+</pre>
+<p>&nbsp;</p>
+<p><strong>Constraints:</strong></p>
+
+<ul>
+	<li><code>1 &lt;= a.length, b.length &lt;= 10<sup>4</sup></code></li>
+	<li><code>a</code> and <code>b</code> consist&nbsp;only of <code>&#39;0&#39;</code> or <code>&#39;1&#39;</code> characters.</li>
+	<li>Each string does not contain leading zeros except for the zero itself.</li>
+</ul>

Solutions/0067-add-binary/solution.py

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+class Solution:
+    def addBinary(self, a: str, b: str) -> str:
+        return bin(int(a, 2) + int(b, 2))[2:]