56 lines
1.4 KiB
Markdown
56 lines
1.4 KiB
Markdown
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---
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id: 5900f3c51000cf542c50fed7
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challengeType: 5
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videoUrl: ''
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localeTitle: 问题89：罗马数字
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---
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## Description
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<section id="description">对于以罗马数字书写的数字被认为有效，必须遵循基本规则。尽管规则允许以不止一种方式表达某些数字，但始终存在编写特定数字的“最佳”方式。例如，似乎至少有六种方式编写十六号：IIIIIIIIIIIIIII VIIIIIIIIII VVIIIIII XIIIIII VVVI XVI但是，根据规则，只有XIIIIII和XVI是有效的，最后一个例子被认为是最有效的，因为它使用最少数量的数字。 11K文本文件roman.txt（右键单击和'Save Link / Target As ...'）包含一千个用有效但不一定是最小的罗马数字写的数字;请参阅关于...罗马数字，了解此问题的明确规则。通过以最小的形式编写每个字符来查找保存的字符数。注意：您可以假设文件中的所有罗马数字包含不超过四个连续的相同单位。 </section>
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## Instructions
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<section id="instructions">
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: <code>euler89()</code>应该返回743。
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testString: assert.strictEqual(euler89(), 743);
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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function euler89() {
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// Good luck!
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return true;
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}
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euler89();
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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/section>
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