73 lines
1.9 KiB
Markdown
73 lines
1.9 KiB
Markdown
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---
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title: Greatest common divisor
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id: 5a23c84252665b21eecc7e82
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localeTitle: 5a23c84252665b21eecc7e82
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challengeType: 5
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---
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## Description
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<section id='description'>
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Escribe una función que devuelva el mayor divisor común de dos enteros.
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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>gcd</code> debería ser una función.
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testString: 'assert(typeof gcd=="function","<code>gcd</code> should be a function.");'
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- text: <code>gcd(24,36)</code> debe devolver un número.
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testString: 'assert(typeof gcd(24,36)=="number","<code>gcd(24,36)</code> should return a number.");'
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- text: <code>gcd(24,36)</code> debe devolver <code>12</code> .
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testString: 'assert.equal(gcd(24,36),12,"<code>gcd(24,36)</code> should return <code>12</code>.");'
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- text: <code>gcd(30,48)</code> debe devolver <code>6</code> .
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testString: 'assert.equal(gcd(30,48),6,"<code>gcd(30,48)</code> should return <code>6</code>.");'
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- text: <code>gcd(10,15)</code> debe devolver <code>5</code> .
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testString: 'assert.equal(gcd(10,15),5,"<code>gcd(10,15)</code> should return <code>5</code>.");'
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- text: <code>gcd(100,25)</code> debe devolver <code>25</code> .
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testString: 'assert.equal(gcd(100,25),25,"<code>gcd(100,25)</code> should return <code>25</code>.");'
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- text: <code>gcd(13,250)</code> debe devolver <code>1</code> .
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testString: 'assert.equal(gcd(13,250),1,"<code>gcd(13,250)</code> should return <code>1</code>.");'
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- text: <code>gcd(1300,250)</code> debe devolver <code>50</code> .
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testString: 'assert.equal(gcd(1300,250),50,"<code>gcd(1300,250)</code> should return <code>50</code>.");'
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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 gcd(a, b) {
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// Good luck!
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}
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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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function gcd(a, b) {
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return b==0 ? Math.abs(a):gcd(b, a % b);
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}
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```
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</section>
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