56 lines
		
	
	
		
			1000 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
		
		
			
		
	
	
			56 lines
		
	
	
		
			1000 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
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								---
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								id: 5900f5331000cf542c510045
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								challengeType: 5
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								title: 'Problem 454: Diophantine reciprocals III'
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								videoUrl: ''
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								localeTitle: 问题454:丢番图倒数III
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								---
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								## Description
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								<section id="description">在下面的等式中,x,y和n是正整数。 <p> 1x + 1y = 1n </p><p>对于极限L,我们将F(L)定义为满足x <y≤L的解的数量。 </p><p>我们可以验证F(15)= 4和F(1000)= 1069.找到F(1012)。 </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>euler454()</code>应该返回5435004633092。
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								    testString: 'assert.strictEqual(euler454(), 5435004633092, "<code>euler454()</code> should return 5435004633092.");'
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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 euler454() {
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								  // Good luck!
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								  return true;
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								}
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								euler454();
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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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