freeCodeCamp/curriculum/challenges/arabic/08-coding-interview-prep/data-structures/adjacency-matrix.arabic.md

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---
id: 587d8256367417b2b2512c78
title: Adjacency Matrix
challengeType: 1
videoUrl: ''
localeTitle: ''
---
## Description
undefined
## Instructions
undefined
## Tests
<section id='tests'>
```yml
tests:
- text: ''
testString: 'assert((adjMatUndirected.length === 5) && adjMatUndirected.map(function(x) { return x.length === 5 }).reduce(function(a, b) { return a && b }) , "<code>undirectedAdjList</code> should only contain five nodes.");'
- text: ''
testString: 'assert((adjMatUndirected[0][3] === 1) && (adjMatUndirected[3][0] === 1), "There should be an edge between the first and fourth node.");'
- text: ''
testString: 'assert((adjMatUndirected[0][2] === 1) && (adjMatUndirected[2][0] === 1), "There should be an edge between the first and third node.");'
- text: ''
testString: 'assert((adjMatUndirected[2][4] === 1) && (adjMatUndirected[4][2] === 1), "There should be an edge between the third and fifth node.");'
- text: ''
testString: 'assert((adjMatUndirected[3][4] === 1) && (adjMatUndirected[4][3] === 1), "There should be an edge between the fourth and fifth node.");'
```
</section>
## Challenge Seed
<section id='challengeSeed'>
<div id='js-seed'>
```js
var adjMatUndirected = [
];
```
</div>
</section>
## Solution
<section id='solution'>
```js
// solution required
```
</section>