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21 lines
929 B
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21 lines
929 B
HTML
<p>Given two non-negative integers <code>num1</code> and <code>num2</code> represented as strings, return the product of <code>num1</code> and <code>num2</code>, also represented as a string.</p>
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<p><strong>Note:</strong> You must not use any built-in BigInteger library or convert the inputs to integer directly.</p>
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<p> </p>
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<p><strong>Example 1:</strong></p>
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<pre><strong>Input:</strong> num1 = "2", num2 = "3"
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<strong>Output:</strong> "6"
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</pre><p><strong>Example 2:</strong></p>
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<pre><strong>Input:</strong> num1 = "123", num2 = "456"
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<strong>Output:</strong> "56088"
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</pre>
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<p> </p>
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<p><strong>Constraints:</strong></p>
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<ul>
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<li><code>1 <= num1.length, num2.length <= 200</code></li>
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<li><code>num1</code> and <code>num2</code> consist of digits only.</li>
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<li>Both <code>num1</code> and <code>num2</code> do not contain any leading zero, except the number <code>0</code> itself.</li>
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</ul>
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