---
title: Josephus problem
id: 5a23c84252665b21eecc7ec5
challengeType: 5
videoUrl: ''
localeTitle: ''
---

## Description
undefined

## Instructions
undefined

## Tests
<section id='tests'>

```yml
tests:
  - text: ''
    testString: 'assert(typeof josephus=="function","<code>josephus</code> should be a function.");'
  - text: ''
    testString: 'assert(typeof josephus(30,3)=="number","<code>josephus(30,3)</code> should return a number.");'
  - text: ''
    testString: 'assert.equal(josephus(30,3),29,"<code>josephus(30,3)</code> should return <code>29</code>.");'
  - text: ''
    testString: 'assert.equal(josephus(30,5),3,"<code>josephus(30,5)</code> should return <code>3</code>.");'
  - text: ''
    testString: 'assert.equal(josephus(20,2),9,"<code>josephus(20,2)</code> should return <code>9</code>.");'
  - text: ''
    testString: 'assert.equal(josephus(17,6),2,"<code>josephus(17,6)</code> should return <code>2</code>.");'
  - text: ''
    testString: 'assert.equal(josephus(29,4),2,"<code>josephus(29,4)</code> should return <code>2</code>.");'

```

</section>

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

<div id='js-seed'>

```js
function josephus (init, kill) {
  // Good luck!
}

```

</div>



</section>

## Solution
<section id='solution'>

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