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leetcode-problemset/leetcode/originData/reverse-words-in-a-string.json

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"title": "Reverse Words in a String",
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"content": "<p>Given an input string <code>s</code>, reverse the order of the <strong>words</strong>.</p>\n\n<p>A <strong>word</strong> is defined as a sequence of non-space characters. The <strong>words</strong> in <code>s</code> will be separated by at least one space.</p>\n\n<p>Return <em>a string of the words in reverse order concatenated by a single space.</em></p>\n\n<p><b>Note</b> that <code>s</code> may contain leading or trailing spaces or multiple spaces between two words. The returned string should only have a single space separating the words. Do not include any extra spaces.</p>\n\n<p>&nbsp;</p>\n<p><strong class=\"example\">Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;the sky is blue&quot;\n<strong>Output:</strong> &quot;blue is sky the&quot;\n</pre>\n\n<p><strong class=\"example\">Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot; hello world &quot;\n<strong>Output:</strong> &quot;world hello&quot;\n<strong>Explanation:</strong> Your reversed string should not contain leading or trailing spaces.\n</pre>\n\n<p><strong class=\"example\">Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> s = &quot;a good example&quot;\n<strong>Output:</strong> &quot;example good a&quot;\n<strong>Explanation:</strong> You need to reduce multiple spaces between two words to a single space in the reversed string.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= s.length &lt;= 10<sup>4</sup></code></li>\n\t<li><code>s</code> contains English letters (upper-case and lower-case), digits, and spaces <code>&#39; &#39;</code>.</li>\n\t<li>There is <strong>at least one</strong> word in <code>s</code>.</li>\n</ul>\n\n<p>&nbsp;</p>\n<p><b data-stringify-type=\"bold\">Follow-up:&nbsp;</b>If the string data type is mutable in your language, can&nbsp;you solve it&nbsp;<b data-stringify-type=\"bold\">in-place</b>&nbsp;with&nbsp;<code data-stringify-type=\"code\">O(1)</code>&nbsp;extra space?</p>\n",
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