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leetcode-problemset/算法题(国外版)/rearrange-spaces-between-words.html
2022-03-27 18:52:06 +08:00

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<p>You are given a string <code>text</code> of words that are placed among some number of spaces. Each word consists of one or more lowercase English letters and are separated by at least one space. It&#39;s guaranteed that <code>text</code> <strong>contains at least one word</strong>.</p>
<p>Rearrange the spaces so that there is an <strong>equal</strong> number of spaces between every pair of adjacent words and that number is <strong>maximized</strong>. If you cannot redistribute all the spaces equally, place the <strong>extra spaces at the end</strong>, meaning the returned string should be the same length as <code>text</code>.</p>
<p>Return <em>the string after rearranging the spaces</em>.</p>
<p>&nbsp;</p>
<p><strong>Example 1:</strong></p>
<pre>
<strong>Input:</strong> text = &quot; this is a sentence &quot;
<strong>Output:</strong> &quot;this is a sentence&quot;
<strong>Explanation:</strong> There are a total of 9 spaces and 4 words. We can evenly divide the 9 spaces between the words: 9 / (4-1) = 3 spaces.
</pre>
<p><strong>Example 2:</strong></p>
<pre>
<strong>Input:</strong> text = &quot; practice makes perfect&quot;
<strong>Output:</strong> &quot;practice makes perfect &quot;
<strong>Explanation:</strong> There are a total of 7 spaces and 3 words. 7 / (3-1) = 3 spaces plus 1 extra space. We place this extra space at the end of the string.
</pre>
<p>&nbsp;</p>
<p><strong>Constraints:</strong></p>
<ul>
<li><code>1 &lt;= text.length &lt;= 100</code></li>
<li><code>text</code> consists of lowercase English letters and <code>&#39; &#39;</code>.</li>
<li><code>text</code> contains at least one word.</li>
</ul>