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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
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curriculum/challenges/english/10-coding-interview-prep/rosetta-code/spiral-matrix.md
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@ -5,13 +5,9 @@ challengeType: 5
forumTopicId: 302321
---
## Description
# --description--
<section id='description'>
Produce a spiral array.
A <i>spiral array</i> is a square arrangement of the first N<sup>2</sup> natural numbers, where the numbers increase sequentially as you go around the edges of the array spiraling inwards.
For example, given <b>5</b>, produce this array:
Produce a spiral array. A *spiral array* is a square arrangement of the first N<sup>2</sup> natural numbers, where the numbers increase sequentially as you go around the edges of the array spiraling inwards. For example, given **5**, produce this array:
<pre>
0 1 2 3 4
@ -20,39 +16,57 @@ For example, given <b>5</b>, produce this array:
13 22 21 20 7
12 11 10 9 8
</pre>
</section>
## Instructions
# --hints--
<section id='instructions'>
`spiralArray` should be a function.
</section>
## Tests
<section id='tests'>
```yml
tests:
- text: <code>spiralArray</code> should be a function.
testString: assert(typeof spiralArray=='function');
- text: <code>spiralArray(3)</code> should return an array.
testString: assert(Array.isArray(spiralArray(3)));
- text: <code>spiralArray(3)</code> should return <code>[[0, 1, 2],[7, 8, 3],[6, 5, 4]]</code>.
testString: assert.deepEqual(spiralArray(3), [[0, 1, 2], [7, 8, 3], [6, 5, 4]]);
- text: <code>spiralArray(4)</code> should return <code>[[0, 1, 2, 3],[11, 12, 13, 4],[10, 15, 14, 5],[9, 8, 7, 6]]</code>.
testString: assert.deepEqual(spiralArray(4), [[0, 1, 2, 3], [11, 12, 13, 4], [10, 15, 14, 5], [9, 8, 7, 6]]);
- text: <code>spiralArray(5)</code> should return <code>[[0, 1, 2, 3, 4],[15, 16, 17, 18, 5],[14, 23, 24, 19, 6],[13, 22, 21, 20, 7],[12, 11, 10, 9, 8]]</code>.
testString: assert.deepEqual(spiralArray(5), [[0, 1, 2, 3, 4], [15, 16, 17, 18, 5], [14, 23, 24, 19, 6], [13, 22, 21, 20, 7], [12, 11, 10, 9, 8]]);
```js
assert(typeof spiralArray == 'function');
```
</section>
`spiralArray(3)` should return an array.
## Challenge Seed
```js
assert(Array.isArray(spiralArray(3)));
```
<section id='challengeSeed'>
`spiralArray(3)` should return `[[0, 1, 2],[7, 8, 3],[6, 5, 4]]`.
<div id='js-seed'>
```js
assert.deepEqual(spiralArray(3), [
[0, 1, 2],
[7, 8, 3],
[6, 5, 4]
]);
```
`spiralArray(4)` should return `[[0, 1, 2, 3],[11, 12, 13, 4],[10, 15, 14, 5],[9, 8, 7, 6]]`.
```js
assert.deepEqual(spiralArray(4), [
[0, 1, 2, 3],
[11, 12, 13, 4],
[10, 15, 14, 5],
[9, 8, 7, 6]
]);
```
`spiralArray(5)` should return `[[0, 1, 2, 3, 4],[15, 16, 17, 18, 5],[14, 23, 24, 19, 6],[13, 22, 21, 20, 7],[12, 11, 10, 9, 8]]`.
```js
assert.deepEqual(spiralArray(5), [
[0, 1, 2, 3, 4],
[15, 16, 17, 18, 5],
[14, 23, 24, 19, 6],
[13, 22, 21, 20, 7],
[12, 11, 10, 9, 8]
]);
```
# --seed--
## --seed-contents--
```js
function spiralArray(n) {
@ -60,12 +74,7 @@ function spiralArray(n) {
}
```
</div>
</section>
## Solution
<section id='solution'>
# --solutions--
```js
function spiralArray(n) {
@ -97,5 +106,3 @@ function spiralArray(n) {
return arr;
}
```
</section>