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36 lines
1.2 KiB
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36 lines
1.2 KiB
HTML
<p>Given an integer <code>x</code>, return <code>true</code><em> if </em><code>x</code><em> is a </em><span data-keyword="palindrome-integer"><em><strong>palindrome</strong></em></span><em>, and </em><code>false</code><em> otherwise</em>.</p>
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<p> </p>
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<p><strong class="example">Example 1:</strong></p>
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<pre>
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<strong>Input:</strong> x = 121
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<strong>Output:</strong> true
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<strong>Explanation:</strong> 121 reads as 121 from left to right and from right to left.
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</pre>
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<p><strong class="example">Example 2:</strong></p>
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<pre>
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<strong>Input:</strong> x = -121
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<strong>Output:</strong> false
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<strong>Explanation:</strong> From left to right, it reads -121. From right to left, it becomes 121-. Therefore it is not a palindrome.
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</pre>
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<p><strong class="example">Example 3:</strong></p>
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<pre>
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<strong>Input:</strong> x = 10
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<strong>Output:</strong> false
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<strong>Explanation:</strong> Reads 01 from right to left. Therefore it is not a palindrome.
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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>-2<sup>31</sup> <= x <= 2<sup>31</sup> - 1</code></li>
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</ul>
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<p> </p>
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<strong>Follow up:</strong> Could you solve it without converting the integer to a string? |