freeCodeCamp/problem-173-using-up-to-one-million-tiles-how-many-different-hollow-square-laminae-can-be-formed.md at 2c9a900353d88bfc6736681b7ca63201ddea4dd5

Oliver Eyton-Williams 2b9e38a17b

fix: replace .english.md extension with .md

2020-09-29 22:09:04 +02:00

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id, challengeType, title, forumTopicId

id	challengeType	title	forumTopicId
5900f41a1000cf542c50ff2c	5	Problem 173: Using up to one million tiles how many different "hollow" square laminae can be formed?	301808

Description

We shall define a square lamina to be a square outline with a square "hole" so that the shape possesses vertical and horizontal symmetry. For example, using exactly thirty-two square tiles we can form two different square laminae:

With one-hundred tiles, and not necessarily using all of the tiles at one time, it is possible to form forty-one different square laminae. Using up to one million tiles how many different square laminae can be formed?

Instructions

Tests

tests:
  - text: <code>euler173()</code> should return 1572729.
    testString: assert.strictEqual(euler173(), 1572729);

Challenge Seed

function euler173() {

  return true;
}

euler173();

Solution

// solution required

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