mirror of
https://gitee.com/coder-xiaomo/leetcode-problemset
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172 lines
15 KiB
JSON
172 lines
15 KiB
JSON
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"title": "Pow(x, n)",
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"content": "<p>Implement <a href=\"http://www.cplusplus.com/reference/valarray/pow/\" target=\"_blank\">pow(x, n)</a>, which calculates <code>x</code> raised to the power <code>n</code> (i.e., <code>x<sup>n</sup></code>).</p>\n\n<p> </p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> x = 2.00000, n = 10\n<strong>Output:</strong> 1024.00000\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> x = 2.10000, n = 3\n<strong>Output:</strong> 9.26100\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> x = 2.00000, n = -2\n<strong>Output:</strong> 0.25000\n<strong>Explanation:</strong> 2<sup>-2</sup> = 1/2<sup>2</sup> = 1/4 = 0.25\n</pre>\n\n<p> </p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>-100.0 < x < 100.0</code></li>\n\t<li><code>-2<sup>31</sup> <= n <= 2<sup>31</sup>-1</code></li>\n\t<li><code>-10<sup>4</sup> <= x<sup>n</sup> <= 10<sup>4</sup></code></li>\n</ul>\n",
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