66 lines
1.3 KiB
Markdown
66 lines
1.3 KiB
Markdown
---
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id: 5900f3c11000cf542c50fed4
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challengeType: 5
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title: 'Problem 85: Counting rectangles'
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forumTopicId: 302199
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---
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## Description
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<section id='description'>
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By counting carefully it can be seen that a rectangular grid measuring 3 by 2 contains eighteen rectangles:
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<img class="img-responsive center-block" alt="a diagram of the different rectangles found within a 3 by 2 rectangular grid" src="https://cdn-media-1.freecodecamp.org/project-euler/counting-rectangles.png" style="background-color: white; padding: 10px;">
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Although there exists no rectangular grid that contains exactly two million rectangles, find the area of the grid with the nearest solution.
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</section>
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## Instructions
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<section id='instructions'>
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: <code>countingRectangles()</code> should return a number.
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testString: assert(typeof countingRectangles() === 'number');
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- text: <code>countingRectangles()</code> should return 2772.
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testString: assert.strictEqual(countingRectangles(), 2772);
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='js-seed'>
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```js
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function countingRectangles() {
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return true;
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}
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countingRectangles();
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```js
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// solution required
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```
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</section>
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