---
id: 5900f3931000cf542c50fea6
challengeType: 5
title: 'Problem 39: Integer right triangles'
videoUrl: ''
localeTitle: 问题39：整数直角三角形
---

## Description
<section id="description">如果p是具有整数长度边的直角三角形的周长{a，b，c}，则对于p = 120，恰好有三个解。{20,48,52}，{24,45,51}，{ 30,40,50}对于p≤n的值，最大化解的数量是多少？ </section>

## Instructions
<section id="instructions">
</section>

## Tests
<section id='tests'>

```yml
tests:
  - text: <code>intRightTriangles(500)</code>应该返回420。
    testString: assert(intRightTriangles(500) == 420);
  - text: <code>intRightTriangles(800)</code>应该返回420。
    testString: assert(intRightTriangles(800) == 720);
  - text: <code>intRightTriangles(900)</code>应该返回840。
    testString: assert(intRightTriangles(900) == 840);
  - text: <code>intRightTriangles(1000)</code>应该返回840。
    testString: assert(intRightTriangles(1000) == 840);

```

</section>

## Challenge Seed
<section id='challengeSeed'>

<div id='js-seed'>

```js
function intRightTriangles(n) {
  // Good luck!
  return n;
}

intRightTriangles(1000);

```

</div>



</section>

## Solution
<section id='solution'>

```js
// solution required
```
</section>