Sync LeetCode submission - Reverse Words in a String - Runtime - 0 ms (100.00%), Memory - 17.3 MB (95.12%)

Author: RispaJoseph

0151-reverse-words-in-a-string/README.md

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+<p>Given an input string <code>s</code>, reverse the order of the <strong>words</strong>.</p>
+
+<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>
+
+<p>Return <em>a string of the words in reverse order concatenated by a single space.</em></p>
+
+<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>
+
+<p>&nbsp;</p>
+<p><strong class="example">Example 1:</strong></p>
+
+<pre>
+<strong>Input:</strong> s = &quot;the sky is blue&quot;
+<strong>Output:</strong> &quot;blue is sky the&quot;
+</pre>
+
+<p><strong class="example">Example 2:</strong></p>
+
+<pre>
+<strong>Input:</strong> s = &quot;  hello world  &quot;
+<strong>Output:</strong> &quot;world hello&quot;
+<strong>Explanation:</strong> Your reversed string should not contain leading or trailing spaces.
+</pre>
+
+<p><strong class="example">Example 3:</strong></p>
+
+<pre>
+<strong>Input:</strong> s = &quot;a good   example&quot;
+<strong>Output:</strong> &quot;example good a&quot;
+<strong>Explanation:</strong> You need to reduce multiple spaces between two words to a single space in the reversed string.
+</pre>
+
+<p>&nbsp;</p>
+<p><strong>Constraints:</strong></p>
+
+<ul>
+	<li><code>1 &lt;= s.length &lt;= 10<sup>4</sup></code></li>
+	<li><code>s</code> contains English letters (upper-case and lower-case), digits, and spaces <code>&#39; &#39;</code>.</li>
+	<li>There is <strong>at least one</strong> word in <code>s</code>.</li>
+</ul>
+
+<p>&nbsp;</p>
+<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>

0151-reverse-words-in-a-string/solution.py

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+class Solution:
+    def reverseWords(self, s: str) -> str:
+        splited_str = s.split()
+        reversed_lst = splited_str[::-1]
+        return ' '.join(reversed_lst)
+