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存量题库数据更新

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小墨
2023-12-09 18:42:21 +08:00
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leetcode-cn/problem (English)/罗马数字转整数(English) [roman-to-integer].html
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@@ -10,7 +10,7 @@ C 100
D 500
M 1000</pre>
<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>
<p>For example,&nbsp;<code>2</code> is written as <code>II</code>&nbsp;in Roman numeral, just two ones 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>
<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>
@@ -23,7 +23,7 @@ M 1000</pre>
<p>Given a roman numeral, convert it to an integer.</p>
<p>&nbsp;</p>
<p><strong>Example 1:</strong></p>
<p><strong class="example">Example 1:</strong></p>
<pre>
<strong>Input:</strong> s = &quot;III&quot;
@@ -31,7 +31,7 @@ M 1000</pre>
<strong>Explanation:</strong> III = 3.
</pre>
<p><strong>Example 2:</strong></p>
<p><strong class="example">Example 2:</strong></p>
<pre>
<strong>Input:</strong> s = &quot;LVIII&quot;
@@ -39,7 +39,7 @@ M 1000</pre>
<strong>Explanation:</strong> L = 50, V= 5, III = 3.
</pre>
<p><strong>Example 3:</strong></p>
<p><strong class="example">Example 3:</strong></p>
<pre>
<strong>Input:</strong> s = &quot;MCMXCIV&quot;