56 lines
1.2 KiB
Markdown
56 lines
1.2 KiB
Markdown
|
---
|
|||
|
|
id: 5900f4f21000cf542c510005
|
|||
|
|
challengeType: 5
|
|||
|
|
title: 'Problem 390: Triangles with non rational sides and integral area'
|
|||
|
|
videoUrl: ''
|
|||
|
|
localeTitle: 问题390：具有非理性边和积分面积的三角形
|
|||
|
|
---
|
|||
|
|
|
|||
|
|
## Description
|
|||
|
|
<section id="description">考虑边长为√5，√65和√68的三角形。可以看出，该三角形具有区域9。 <p> S（n）是所有三角形的面积之和，其边长为√（1 + b2），√（1 + c2）和√（b2 + c2）（对于正整数b和c），其积分面积不超过ñ。 </p><p>示例三角形的b = 2且c = 8。 </p><p> S（106）= 18018206。 </p><p>找到S（1010）。 </p></section>
|
|||
|
|
|
|||
|
|
## Instructions
|
|||
|
|
<section id="instructions">
|
|||
|
|
</section>
|
|||
|
|
|
|||
|
|
## Tests
|
|||
|
|
<section id='tests'>
|
|||
|
|
|
|||
|
|
```yml
|
|||
|
|
tests:
|
|||
|
|
- text: <code>euler390()</code>应该返回2919133642971。
|
|||
|
|
testString: 'assert.strictEqual(euler390(), 2919133642971, "<code>euler390()</code> should return 2919133642971.");'
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
</section>
|
|||
|
|
|
|||
|
|
## Challenge Seed
|
|||
|
|
<section id='challengeSeed'>
|
|||
|
|
|
|||
|
|
<div id='js-seed'>
|
|||
|
|
|
|||
|
|
```js
|
|||
|
|
function euler390() {
|
|||
|
|
// Good luck!
|
|||
|
|
return true;
|
|||
|
|
}
|
|||
|
|
|
|||
|
|
euler390();
|
|||
|
|
|
|||
|
|
```
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</section>
|
|||
|
|
|
|||
|
|
## Solution
|
|||
|
|
<section id='solution'>
|
|||
|
|
|
|||
|
|
```js
|
|||
|
|
// solution required
|
|||
|
|
```
|
|||
|
|
</section>
|