56 lines
1.2 KiB
Markdown
56 lines
1.2 KiB
Markdown
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---
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id: 5900f5481000cf542c51005a
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challengeType: 5
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title: 'Problem 475: Music festival'
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videoUrl: ''
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localeTitle: 问题475：音乐节
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---
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## Description
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<section id="description"> 12n音乐家参加音乐节。在第一天，他们形成3n四重奏并整日练习。这是一场灾难。在一天结束时，所有音乐家都决定再也不会同意与他们四重奏的任何成员一起玩。在第二天，他们形成4n三人组，每个音乐家都避开他以前的四重奏伙伴。 <p>设f（12n）是在12n音乐家中组织三人组合的方式。给出f（12）= 576和f（24）mod 1 000 000 007 = 509089824。 </p><p>求f（600）mod 1 000 000 007。 </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>euler475()</code>应返回75780067。
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testString: 'assert.strictEqual(euler475(), 75780067, "<code>euler475()</code> should return 75780067.");'
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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 euler475() {
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// Good luck!
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return true;
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}
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euler475();
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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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