22afc2a0ca
Co-authored-by: Oliver Eyton-Williams <ojeytonwilliams@gmail.com> Co-authored-by: Kristofer Koishigawa <scissorsneedfoodtoo@gmail.com> Co-authored-by: Beau Carnes <beaucarnes@gmail.com>
59 lines
836 B
Markdown
59 lines
836 B
Markdown
---
|
|
id: 5900f4181000cf542c50ff2b
|
|
challengeType: 5
|
|
isHidden: false
|
|
title: 'Problem 172: Investigating numbers with few repeated digits'
|
|
forumTopicId: 301807
|
|
---
|
|
|
|
## Description
|
|
<section id='description'>
|
|
How many 18-digit numbers n (without leading zeros) are there such that no digit occurs more than three times in n?
|
|
</section>
|
|
|
|
## Instructions
|
|
<section id='instructions'>
|
|
|
|
</section>
|
|
|
|
## Tests
|
|
<section id='tests'>
|
|
|
|
```yml
|
|
tests:
|
|
- text: <code>euler172()</code> should return 227485267000992000.
|
|
testString: assert.strictEqual(euler172(), 227485267000992000);
|
|
|
|
```
|
|
|
|
</section>
|
|
|
|
## Challenge Seed
|
|
<section id='challengeSeed'>
|
|
|
|
<div id='js-seed'>
|
|
|
|
```js
|
|
function euler172() {
|
|
// Good luck!
|
|
return true;
|
|
}
|
|
|
|
euler172();
|
|
```
|
|
|
|
</div>
|
|
|
|
|
|
|
|
</section>
|
|
|
|
## Solution
|
|
<section id='solution'>
|
|
|
|
```js
|
|
// solution required
|
|
```
|
|
|
|
</section>
|