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											2018-10-10 18:03:03 -04:00
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							|  |  |  |  | id: 5900f3e81000cf542c50fefb | 
					
						
							|  |  |  |  | challengeType: 5 | 
					
						
							|  |  |  |  | title: 'Problem 124: Ordered radicals' | 
					
						
							|  |  |  |  | videoUrl: '' | 
					
						
							|  |  |  |  | localeTitle: 问题124:有序的激进分子 | 
					
						
							|  |  |  |  | --- | 
					
						
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							|  |  |  |  | ## Description
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							|  |  |  |  | <section id="description"> n,rad(n)的基数是n的不同素因子的乘积。例如,504 = 23×32×7,因此rad(504)= 2×3×7 = 42.如果我们计算1≤n≤10的rad(n),则在rad(n)上对它们进行排序,并进行排序如果激进值相等,我们得到:未分类<p>排序n rad(n) </p><p> n rad(n)k 11 </p><p> 111 22 </p><p> 222 33 </p><p> 423 42 </p><p> 824 55 </p><p> 335 66 </p><p> 936 77 </p><p> 557 82 </p><p> 668 93 </p><p> 779 1010 </p><p> 101010令E(k)为有序n列中的第k个元素;例如,E(4)= 8且E(6)= 9.如果rad(n)按1≤n≤100000排序,则找到E(10000)。 </p></section> | 
					
						
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							|  |  |  |  | ## Instructions
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							|  |  |  |  | <section id="instructions"> | 
					
						
							|  |  |  |  | </section> | 
					
						
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							|  |  |  |  | ## Tests
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							|  |  |  |  | <section id='tests'> | 
					
						
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							|  |  |  |  | ```yml | 
					
						
							|  |  |  |  | tests: | 
					
						
							|  |  |  |  |   - text: <code>euler124()</code>应返回21417。 | 
					
						
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										 |  |  |  |     testString: assert.strictEqual(euler124(), 21417); | 
					
						
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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 | 
					
						
							|  |  |  |  | function euler124() { | 
					
						
							|  |  |  |  |   // Good luck! | 
					
						
							|  |  |  |  |   return true; | 
					
						
							|  |  |  |  | } | 
					
						
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							|  |  |  |  | euler124(); | 
					
						
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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 | 
					
						
							|  |  |  |  | // solution required | 
					
						
							|  |  |  |  | ``` | 
					
						
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							|  |  |  |  | /section> |