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26 lines
715 B
HTML
26 lines
715 B
HTML
<p>给你两个二进制字符串 <code>a</code> 和 <code>b</code> ，以二进制字符串的形式返回它们的和。</p>
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<p> </p>
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<p><strong>示例 1：</strong></p>
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<pre>
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<strong>输入:</strong>a = "11", b = "1"
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<strong>输出：</strong>"100"</pre>
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<p><strong>示例 2：</strong></p>
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<pre>
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<strong>输入：</strong>a = "1010", b = "1011"
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<strong>输出：</strong>"10101"</pre>
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<p> </p>
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<p><strong>提示：</strong></p>
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<ul>
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<li><code>1 <= a.length, b.length <= 10<sup>4</sup></code></li>
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<li><code>a</code> 和 <code>b</code> 仅由字符 <code>'0'</code> 或 <code>'1'</code> 组成</li>
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<li>字符串如果不是 <code>"0"</code> ，就不含前导零</li>
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</ul>
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