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Feat: add new Markdown parser (#39800)

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and change all the challenges to new `md` format.
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Oliver Eyton-Williams
2020-11-27 19:02:05 +01:00
committed by GitHub
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commit 0bd52f8bd1
2580 changed files with 113436 additions and 111979 deletions
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curriculum/challenges/english/10-coding-interview-prep/project-euler/problem-213-flea-circus.md
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@ -1,39 +1,29 @@
---
id: 5900f4411000cf542c50ff54
challengeType: 5
title: 'Problem 213: Flea Circus'
challengeType: 5
forumTopicId: 301855
---
## Description
<section id='description'>
# --description--
A 30×30 grid of squares contains 900 fleas, initially one flea per square.
When a bell is rung, each flea jumps to an adjacent square at random (usually 4 possibilities, except for fleas on the edge of the grid or at the corners).
What is the expected number of unoccupied squares after 50 rings of the bell? Give your answer rounded to six decimal places.
</section>
## Instructions
<section id='instructions'>
# --hints--
</section>
## Tests
<section id='tests'>
```yml
tests:
- text: <code>euler213()</code> should return 330.721154.
testString: assert.strictEqual(euler213(), 330.721154);
`euler213()` should return 330.721154.
```js
assert.strictEqual(euler213(), 330.721154);
```
</section>
# --seed--
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
## --seed-contents--
```js
function euler213() {
@ -44,17 +34,8 @@ function euler213() {
euler213();
```
</div>
</section>
## Solution
<section id='solution'>
# --solutions--
```js
// solution required
```
</section>