ee1e8abd87
* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
49 lines
1.1 KiB
Markdown
49 lines
1.1 KiB
Markdown
---
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id: 5900f3c11000cf542c50fed4
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title: 'Problem 85: Counting rectangles'
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challengeType: 5
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forumTopicId: 302199
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dashedName: problem-85-counting-rectangles
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---
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# --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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# --hints--
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`countingRectangles()` should return a number.
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```js
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assert(typeof countingRectangles() === 'number');
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```
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`countingRectangles()` should return 2772.
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```js
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assert.strictEqual(countingRectangles(), 2772);
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```
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# --seed--
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## --seed-contents--
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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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# --solutions--
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```js
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// solution required
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```
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