55 lines
1.3 KiB
Markdown
55 lines
1.3 KiB
Markdown
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---
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id: 5900f5231000cf542c510034
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challengeType: 5
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title: 'Problem 438: Integer part of polynomial equation"s solutions'
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videoUrl: ''
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localeTitle: 问题438：多项式方程解的整数部分
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---
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## Description
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<section id="description">对于整数的n元组t =（a1，...，an），let（x1，...，xn）是多项式方程xn + a1xn-1 + a2xn-2 + ... +的解。 an-1x + an = 0。 <p>考虑以下两个条件：x1，...，xn都是真实的。如果x1，...，xn被排序，则⌊xi⌋= i，1≤i≤n。 （⌊·⌋：地板功能。） </p><p>在n = 4的情况下，有12个n元组的整数满足两个条件。我们将S（t）定义为t中整数绝对值的总和。对于n = 4，我们可以验证满足两个条件的所有n元组t的ΣS（t）= 2087。 </p><p>找到ΣS（t）为n = 7。 </p></section>
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## Instructions
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undefined
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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: ''
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testString: 'assert.strictEqual(euler438(), 2046409616809, "<code>euler438()</code> should return 2046409616809.");'
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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 euler438() {
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// Good luck!
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return true;
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}
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euler438();
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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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