freeCodeCamp/curriculum/challenges/chinese/10-coding-interview-prep/project-euler/problem-438-integer-part-of...

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---
id: 5900f5231000cf542c510034
challengeType: 5
videoUrl: ''
title: 问题438多项式方程解的整数部分
---
## Description
<section id="description">对于整数的n元组t =a1...anletx1...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⌋= i1≤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St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ΣSt= 2087。 </p><p>找到ΣSt为n = 7。 </p></section>
## Instructions
<section id="instructions">
</section>
## Tests
<section id='tests'>
```yml
tests:
- text: <code>euler438()</code>应该返回2046409616809。
testString: assert.strictEqual(euler438(), 2046409616809);
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
```js
function euler438() {
// Good luck!
return true;
}
euler438();
```
</div>
</section>
## Solution
<section id='solution'>
```js
// solution required
```
/section>