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freeCodeCamp/curriculum/challenges/english/08-coding-interview-prep/project-euler/problem-85-counting-rectangles.english.md
Kristofer Koishigawa 6cfd0fc503 fix: improve Project Euler descriptions, challenge seeds, and test cases (#38016)
* fix: improve Project Euler descriptions and test case

Improve formatting of Project Euler test descriptions. Also add poker hands array and new test case for problem 54

* feat: add typeof tests and gave functions proper names for first 100 challenges

* fix: continue fixing test descriptions and adding "before test" sections

* fix: address review comments

* fix: adjust grids in 18 and 67 and fix some text that reference files rather than the given arrays

* fix: implement bug fixes and improvements from review

* fix: remove console.log statements from seed and solution
2020-02-28 06:39:47 -06:00

1.3 KiB

id, challengeType, title, forumTopicId
id challengeType title forumTopicId
5900f3c11000cf542c50fed4 5 Problem 85: Counting rectangles 302199

Description

By counting carefully it can be seen that a rectangular grid measuring 3 by 2 contains eighteen rectangles:

a diagram of the different rectangles found within a 3 by 2 rectangular grid

Although there exists no rectangular grid that contains exactly two million rectangles, find the area of the grid with the nearest solution.

Instructions

Tests

tests:
  - text: <code>countingRectangles()</code> should return a number.
    testString: assert(typeof countingRectangles() === 'number');
  - text: <code>countingRectangles()</code> should return 2772.
    testString: assert.strictEqual(countingRectangles(), 2772);

Challenge Seed

function countingRectangles() {
  // Good luck!
  return true;
}

countingRectangles();

Solution

// solution required