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 <span data-keyword=\"frequency-textfile\">frequency</span> of each word in a text file <code>words.txt</code>.</p>\n\n<p>For simplicity sake, you may assume:</p>\n\n<ul>\n\t<li><code>words.txt</code> contains only lowercase characters and space <code>&#39; &#39;</code> characters.</li>\n\t<li>Each word must consist of lowercase characters only.</li>\n\t<li>Words are separated by one or more whitespace characters.</li>\n</ul>\n\n<p><strong class=\"example\">Example:</strong></p>\n\n<p>Assume that <code>words.txt</code> has the following content:</p>\n\n<pre>\nthe day is sunny the the\nthe sunny is is\n</pre>\n\n<p>Your script should output the following, sorted by descending frequency:</p>\n\n<pre>\nthe 4\nis 3\nsunny 2\nday 1\n</pre>\n\n<p><b>Note:</b></p>\n\n<ul>\n\t<li>Don&#39;t worry about handling ties, it is guaranteed that each word&#39;s frequency count is unique.</li>\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>\n</ul>\n",
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            "difficulty": "Medium",
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            "similarQuestions": "[{\"title\": \"Top K Frequent Elements\", \"titleSlug\": \"top-k-frequent-elements\", \"difficulty\": \"Medium\", \"translatedTitle\": null}]",
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            "categoryTitle": "Shell",
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                    "lang": "Bash",
                    "langSlug": "bash",
                    "code": "# Read from the file words.txt and output the word frequency list to stdout.\n",
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