70 lines
2.3 KiB
Markdown
70 lines
2.3 KiB
Markdown
---
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title: Towers of Hanoi
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id: 5951ed8945deab770972ae56
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challengeType: 5
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videoUrl: ''
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localeTitle: 河内的塔
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---
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## Description
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<section id="description">任务： <p>解决<a href="https://en.wikipedia.org/wiki/Towers_of_Hanoi" title="wp：Towers_of_Hanoi">河内塔</a>问题。 </p><p>您的解决方案应该接受光盘数量作为第一个参数，并使用三个字符串来识别三个光盘堆栈中的每一个，例如<code>towerOfHanoi(4, 'A', 'B', 'C')</code> 。该函数应该返回一个包含移动列表的数组数组，source - > destination。例如，数组<code>[['A', 'C'], ['B', 'A']]</code>表示第一个移动是将光盘从堆栈A移动到C，第二个移动是移动一个从堆栈B到A的光盘</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>towerOfHanoi</code>是一个功能。
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testString: assert(typeof towerOfHanoi === 'function');
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- text: <code>towerOfHanoi(3, ...)</code> 应该返回7招。
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testString: assert(res3.length === 7);
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- text: <code>towerOfHanoi(3, "A", "B", "C")</code>应返回[[“A”，“B”]，[“A”，“C”]，[“B”，“C”]，[ “A”， “B”]，[ “C”， “A”]，[ “C”， “B”]，[ “A”， “B”]]“）。
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testString: assert.deepEqual(towerOfHanoi(3, 'A', 'B', 'C'), res3Moves);
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- text: <code>towerOfHanoi(5, "X", "Y", "Z")</code>第10 <code>towerOfHanoi(5, "X", "Y", "Z")</code>应为Y - > X.
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testString: assert.deepEqual(res5[9], ['Y', 'X']);
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- text: <code>towerOfHanoi(7, "A", "B", "C")</code>前十个动作是[[“A”，“B”]，[“A”，“C”]，[“B”，“C”] [ “A”， “B”]，[ “C”， “A”]，[ “C”， “B”]，[ “A”， “B”]，[ “A”， “C”] [ “B”， “C”]，[ “B”， “A”]]“）。
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testString: assert.deepEqual(towerOfHanoi(7, 'A', 'B', 'C').slice(0, 10), res7First10Moves);
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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 towerOfHanoi (n, a, b, c) {
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// Good luck!
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return [[]];
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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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