56 lines
1.3 KiB
Markdown
56 lines
1.3 KiB
Markdown
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---
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id: 5900f4701000cf542c50ff82
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challengeType: 5
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title: 'Problem 259: Reachable Numbers'
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videoUrl: ''
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localeTitle: 问题259：可达号码
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---
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## Description
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<section id="description">如果正整数可以由遵循以下规则的算术表达式产生，则称为正整数： <p>按顺序使用数字1到9，每个数字恰好一次。可以连接任何连续的数字（例如，使用数字2,3和4，我们获得数字234）。只允许四种常用的二进制算术运算（加法，减法，乘法和除法）。每个操作可以使用任何次数，或者根本不使用。不允许一元减号。可以使用任意数量（可能嵌套的）括号来定义操作的顺序。例如，42是可达的，因为（1/23） <em>（（4</em> 5）-6）*（78-9）= 42。 </p><p>所有正可达整数的总和是多少？ </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>euler259()</code>应返回20101196798。
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testString: 'assert.strictEqual(euler259(), 20101196798, "<code>euler259()</code> should return 20101196798.");'
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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 euler259() {
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// Good luck!
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return true;
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}
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euler259();
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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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