63 lines
1.6 KiB
Markdown
63 lines
1.6 KiB
Markdown
---
|
|
title: Evaluate binomial coefficients
|
|
id: 598de241872ef8353c58a7a2
|
|
challengeType: 5
|
|
videoUrl: ''
|
|
localeTitle: Evaluar coeficientes binomiales.
|
|
---
|
|
|
|
## Description
|
|
<section id="description"><p> Escribe una función para calcular el coeficiente binomial para el valor dado de n y k. </p><p> Se recomienda esta fórmula: </p> $ \ binom {n} {k} = \ frac {n!} {(nk)! k!} = \ frac {n (n-1) (n-2) \ ldots (n-k + 1)} { k (k-1) (k-2) \ ldots 1} $ </section>
|
|
|
|
## Instructions
|
|
<section id="instructions">
|
|
</section>
|
|
|
|
## Tests
|
|
<section id='tests'>
|
|
|
|
```yml
|
|
tests:
|
|
- text: <code>binom</code> es una función.
|
|
testString: 'assert(typeof binom === "function", "<code>binom</code> is a function.");'
|
|
- text: '<code>binom(5,3)</code> debe devolver 10.'
|
|
testString: 'assert.equal(binom(5, 3), 10, "<code>binom(5,3)</code> should return 10.");'
|
|
- text: '<code>binom(7,2)</code> debe devolver 21.'
|
|
testString: 'assert.equal(binom(7, 2), 21, "<code>binom(7,2)</code> should return 21.");'
|
|
- text: '<code>binom(10,4)</code> debe devolver 210.'
|
|
testString: 'assert.equal(binom(10, 4), 210, "<code>binom(10,4)</code> should return 210.");'
|
|
- text: '<code>binom(6,1)</code> debe devolver 6.'
|
|
testString: 'assert.equal(binom(6, 1), 6, "<code>binom(6,1)</code> should return 6.");'
|
|
- text: '<code>binom(12,8)</code> debe devolver 495.'
|
|
testString: 'assert.equal(binom(12, 8), 495, "<code>binom(12,8)</code> should return 495.");'
|
|
|
|
```
|
|
|
|
</section>
|
|
|
|
## Challenge Seed
|
|
<section id='challengeSeed'>
|
|
|
|
<div id='js-seed'>
|
|
|
|
```js
|
|
function binom (n, k) {
|
|
// Good luck!
|
|
}
|
|
|
|
```
|
|
|
|
</div>
|
|
|
|
|
|
|
|
</section>
|
|
|
|
## Solution
|
|
<section id='solution'>
|
|
|
|
```js
|
|
// solution required
|
|
```
|
|
</section>
|