leetcode-problemset/leetcode-cn/originData/integer-to-roman.json

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            "title": "Integer to Roman",
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            "content": "<p>Roman numerals are represented by seven different symbols:&nbsp;<code>I</code>, <code>V</code>, <code>X</code>, <code>L</code>, <code>C</code>, <code>D</code> and <code>M</code>.</p>\n\n<pre>\n<strong>Symbol</strong>       <strong>Value</strong>\nI             1\nV             5\nX             10\nL             50\nC             100\nD             500\nM             1000</pre>\n\n<p>For example,&nbsp;<code>2</code> is written as <code>II</code>&nbsp;in Roman numeral, just two one&#39;s added together. <code>12</code> is written as&nbsp;<code>XII</code>, which is simply <code>X + II</code>. The number <code>27</code> is written as <code>XXVII</code>, which is <code>XX + V + II</code>.</p>\n\n<p>Roman numerals are usually written largest to smallest from left to right. However, the numeral for four is not <code>IIII</code>. Instead, the number four is written as <code>IV</code>. Because the one is before the five we subtract it making four. The same principle applies to the number nine, which is written as <code>IX</code>. There are six instances where subtraction is used:</p>\n\n<ul>\n\t<li><code>I</code> can be placed before <code>V</code> (5) and <code>X</code> (10) to make 4 and 9.&nbsp;</li>\n\t<li><code>X</code> can be placed before <code>L</code> (50) and <code>C</code> (100) to make 40 and 90.&nbsp;</li>\n\t<li><code>C</code> can be placed before <code>D</code> (500) and <code>M</code> (1000) to make 400 and 900.</li>\n</ul>\n\n<p>Given an integer, convert it to a roman numeral.</p>\n\n<p>&nbsp;</p>\n<p><strong>Example 1:</strong></p>\n\n<pre>\n<strong>Input:</strong> num = 3\n<strong>Output:</strong> &quot;III&quot;\n<strong>Explanation:</strong> 3 is represented as 3 ones.\n</pre>\n\n<p><strong>Example 2:</strong></p>\n\n<pre>\n<strong>Input:</strong> num = 58\n<strong>Output:</strong> &quot;LVIII&quot;\n<strong>Explanation:</strong> L = 50, V = 5, III = 3.\n</pre>\n\n<p><strong>Example 3:</strong></p>\n\n<pre>\n<strong>Input:</strong> num = 1994\n<strong>Output:</strong> &quot;MCMXCIV&quot;\n<strong>Explanation:</strong> M = 1000, CM = 900, XC = 90 and IV = 4.\n</pre>\n\n<p>&nbsp;</p>\n<p><strong>Constraints:</strong></p>\n\n<ul>\n\t<li><code>1 &lt;= num &lt;= 3999</code></li>\n</ul>\n",
            "translatedTitle": "整数转罗马数字",
            "translatedContent": "<p>罗马数字包含以下七种字符： <code>I</code>， <code>V</code>， <code>X</code>， <code>L</code>，<code>C</code>，<code>D</code> 和 <code>M</code>。</p>\n\n<pre>\n<strong>字符</strong>          <strong>数值</strong>\nI             1\nV             5\nX             10\nL             50\nC             100\nD             500\nM             1000</pre>\n\n<p>例如， 罗马数字 2 写做 <code>II</code> ，即为两个并列的 1。12 写做 <code>XII</code> ，即为 <code>X</code> + <code>II</code> 。 27 写做  <code>XXVII</code>, 即为 <code>XX</code> + <code>V</code> + <code>II</code> 。</p>\n\n<p>通常情况下，罗马数字中小的数字在大的数字的右边。但也存在特例，例如 4 不写做 <code>IIII</code>，而是 <code>IV</code>。数字 1 在数字 5 的左边，所表示的数等于大数 5 减小数 1 得到的数值 4 。同样地，数字 9 表示为 <code>IX</code>。这个特殊的规则只适用于以下六种情况：</p>\n\n<ul>\n\t<li><code>I</code> 可以放在 <code>V</code> (5) 和 <code>X</code> (10) 的左边，来表示 4 和 9。</li>\n\t<li><code>X</code> 可以放在 <code>L</code> (50) 和 <code>C</code> (100) 的左边，来表示 40 和 90。 </li>\n\t<li><code>C</code> 可以放在 <code>D</code> (500) 和 <code>M</code> (1000) 的左边，来表示 400 和 900。</li>\n</ul>\n\n<p>给你一个整数，将其转为罗马数字。</p>\n\n<p> </p>\n\n<p><strong>示例 1:</strong></p>\n\n<pre>\n<strong>输入:</strong> num = 3\n<strong>输出:</strong> \"III\"</pre>\n\n<p><strong>示例 2:</strong></p>\n\n<pre>\n<strong>输入:</strong> num = 4\n<strong>输出:</strong> \"IV\"</pre>\n\n<p><strong>示例 3:</strong></p>\n\n<pre>\n<strong>输入:</strong> num = 9\n<strong>输出:</strong> \"IX\"</pre>\n\n<p><strong>示例 4:</strong></p>\n\n<pre>\n<strong>输入:</strong> num = 58\n<strong>输出:</strong> \"LVIII\"\n<strong>解释:</strong> L = 50, V = 5, III = 3.\n</pre>\n\n<p><strong>示例 5:</strong></p>\n\n<pre>\n<strong>输入:</strong> num = 1994\n<strong>输出:</strong> \"MCMXCIV\"\n<strong>解释:</strong> M = 1000, CM = 900, XC = 90, IV = 4.</pre>\n\n<p> </p>\n\n<p><strong>提示：</strong></p>\n\n<ul>\n\t<li><code>1 <= num <= 3999</code></li>\n</ul>\n",
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