69 lines
1.0 KiB
Markdown
69 lines
1.0 KiB
Markdown
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---
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id: 5
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localeTitle: 5900f5271000cf542c51003a
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challengeType: 5
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title: 'Problem 443: GCD sequence'
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---
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## Description
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<section id='description'>
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Sea g (n) una secuencia definida de la siguiente manera:
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g (4) = 13,
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g (n) = g (n-1) + gcd (n, g (n-1)) para n> 4.
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Los primeros valores son:
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n4567891011121314151617181920 ...
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g (n) 1314161718272829303132333451545560 ...
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Se le da que g (1 000) = 2524 yg (1 000 000) = 2624152.
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Buscar g (1015).
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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>euler443()</code> debe devolver 2744233049300770.
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testString: 'assert.strictEqual(euler443(), 2744233049300770, "<code>euler443()</code> should return 2744233049300770.");'
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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 euler443() {
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// Good luck!
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return true;
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}
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euler443();
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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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