leetcode-problemset/leetcode/originData/word-frequency.json

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            "title": "Word Frequency",
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            "content": "<p>Write a bash script to calculate the frequency of each word in a text file <code>words.txt</code>.</p>\r\n\r\n<p>For simplicity sake, you may assume:</p>\r\n\r\n<ul>\r\n\t<li><code>words.txt</code> contains only lowercase characters and space <code>&#39; &#39;</code> characters.</li>\r\n\t<li>Each word must consist of lowercase characters only.</li>\r\n\t<li>Words are separated by one or more whitespace characters.</li>\r\n</ul>\r\n\r\n<p><strong>Example:</strong></p>\r\n\r\n<p>Assume that <code>words.txt</code> has the following content:</p>\r\n\r\n<pre>\r\nthe day is sunny the the\r\nthe sunny is is\r\n</pre>\r\n\r\n<p>Your script should output the following, sorted by descending frequency:</p>\r\n\r\n<pre>\r\nthe 4\r\nis 3\r\nsunny 2\r\nday 1\r\n</pre>\r\n\r\n<p><b>Note:</b></p>\r\n\r\n<ul>\r\n\t<li>Don&#39;t worry about handling ties, it is guaranteed that each word&#39;s frequency count is unique.</li>\r\n\t<li>Could you write it in one-line using <a href=\"http://tldp.org/HOWTO/Bash-Prog-Intro-HOWTO-4.html\">Unix pipes</a>?</li>\r\n</ul>\r\n",
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                    "lang": "Bash",
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                    "code": "# Read from the file words.txt and output the word frequency list to stdout.\n",
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