freeCodeCamp/curriculum/challenges/chinese/08-coding-interview-prep/project-euler/problem-29-distinct-powers.chinese.md

---
id: 5900f3891000cf542c50fe9c
challengeType: 5
title: 'Problem 29: Distinct powers'
videoUrl: ''
localeTitle: ''
---

## Description
undefined

## Instructions
undefined

## Tests
<section id='tests'>

```yml
tests:
  - text: ''
    testString: 'assert.strictEqual(distinctPowers(15), 177, "<code>distinctPowers(15)</code> should return 177.");'
  - text: ''
    testString: 'assert.strictEqual(distinctPowers(20), 324, "<code>distinctPowers(20)</code> should return 324.");'
  - text: ''
    testString: 'assert.strictEqual(distinctPowers(25), 519, "<code>distinctPowers(25)</code> should return 519.");'
  - text: ''
    testString: 'assert.strictEqual(distinctPowers(30), 755, "<code>distinctPowers(30)</code> should return 755.");'

```

</section>

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

<div id='js-seed'>

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

distinctPowers(30);

```

</div>



</section>

## Solution
<section id='solution'>

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