56 lines
983 B
Markdown
56 lines
983 B
Markdown
---
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id: 5900f4f11000cf542c510002
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challengeType: 5
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videoUrl: ''
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title: 问题388：不同的线条
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---
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## Description
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<section id="description">考虑所有格点（a，b，c），其中0≤a，b，c≤N。 <p>从原点O（0,0,0）开始，所有线都被绘制到其他格点。设D（N）是不同的这种线的数量。 </p><p>您被给予D（1 000 000）= 831909254469114121。 </p><p>找到D（1010）。将前9位数字后跟最后9位数字作为答案。 </p></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>euler388()</code>应该返回831907372805130000。
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testString: assert.strictEqual(euler388(), 831907372805130000);
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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 euler388() {
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// Good luck!
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return true;
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}
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euler388();
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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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