67 lines
2.0 KiB
Markdown
67 lines
2.0 KiB
Markdown
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---
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title: 'Abundant, deficient and perfect number classifications'
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id: 594810f028c0303b75339acd
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challengeType: 5
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videoUrl: ''
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localeTitle: 丰富，不足和完善的数字分类
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---
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## Description
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<section id="description"><p>它们根据<a href="http://rosettacode.org/wiki/Proper divisors" title="适当的除数">适当的除数</a>定义了三个正整数分类。 </p><p>设$ P（n）$是n的适当除数的总和，其中适当的除数都是n本身以外的正整数。 </p><p>如果<code>P(n) < n</code>那么n被归类为“缺陷” </p><p>如果<code>P(n) === n</code>那么n被归类为“完美” </p><p>如果<code>P(n) > n</code>则n被归类为“丰富” </p><p>例： </p><p> 6具有1,2和3的适当除数。 </p><p> 1 + 2 + 3 = 6，因此6被归类为完美数字。 </p><p>实现一个函数，计算三个类中每个类中1到20,000（包括）的整数。以下列格式将结果输出为数组<code>[deficient, perfect, abundant]</code> 。 </p></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>getDPA</code>是一个功能。
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testString: 'assert(typeof getDPA === "function", "<code>getDPA</code> is a function.");'
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- text: <code>getDPA</code>应该返回一个数组。
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testString: 'assert(Array.isArray(getDPA(100)), "<code>getDPA</code> should return an array.");'
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- text: <code>getDPA</code>返回值的长度应为3。
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testString: 'assert(getDPA(100).length === 3, "<code>getDPA</code> return value should have a length of 3.");'
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- text: '<code>getDPA(20000)</code>应该等于[15043,4,4953]'
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testString: 'assert.deepEqual(getDPA(20000), solution, "<code>getDPA(20000)</code> should equal [15043, 4, 4953]");'
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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 getDPA (num) {
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// Good luck!
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}
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```
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</div>
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### After Test
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<div id='js-teardown'>
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```js
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console.info('after the test');
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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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