56 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
		
		
			
		
	
	
			56 lines
		
	
	
		
			1.3 KiB
		
	
	
	
		
			Markdown
		
	
	
	
	
	
|   | --- | |||
|  | id: 5900f4551000cf542c50ff67 | |||
|  | challengeType: 5 | |||
|  | title: 'Problem 232: The Race' | |||
|  | videoUrl: '' | |||
|  | localeTitle: 问题232:比赛 | |||
|  | --- | |||
|  | 
 | |||
|  | ## Description
 | |||
|  | <section id="description">两名玩家分享一个无偏见的硬币并轮流玩“The Race”。在玩家1的回合中,他扔了一次硬币:如果它出现在Heads,他得分为1分;如果它出现Tails,他什么都没得分。在玩家2的回合中,她选择一个正整数T并将硬币投掷T次:如果它出现在所有的头上,她得到2T-1分;否则,她没有得分。玩家1排在第一位。获胜者是第一个达到100分或更多分。 <p>在每次转弯时,玩家2选择硬币投掷的数量T,以最大化她获胜的概率。 </p><p>玩家2获胜的概率是多少? </p><p>将您的答案四舍五入到0.abcdefgh形式的八位小数。 </p></section> | |||
|  | 
 | |||
|  | ## Instructions
 | |||
|  | <section id="instructions"> | |||
|  | </section> | |||
|  | 
 | |||
|  | ## Tests
 | |||
|  | <section id='tests'> | |||
|  | 
 | |||
|  | ```yml | |||
|  | tests: | |||
|  |   - text: <code>euler232()</code>应返回0.83648556。 | |||
|  |     testString: 'assert.strictEqual(euler232(), 0.83648556, "<code>euler232()</code> should return 0.83648556.");' | |||
|  | 
 | |||
|  | ``` | |||
|  | 
 | |||
|  | </section> | |||
|  | 
 | |||
|  | ## Challenge Seed
 | |||
|  | <section id='challengeSeed'> | |||
|  | 
 | |||
|  | <div id='js-seed'> | |||
|  | 
 | |||
|  | ```js | |||
|  | function euler232() { | |||
|  |   // Good luck! | |||
|  |   return true; | |||
|  | } | |||
|  | 
 | |||
|  | euler232(); | |||
|  | 
 | |||
|  | ``` | |||
|  | 
 | |||
|  | </div> | |||
|  | 
 | |||
|  | 
 | |||
|  | 
 | |||
|  | </section> | |||
|  | 
 | |||
|  | ## Solution
 | |||
|  | <section id='solution'> | |||
|  | 
 | |||
|  | ```js | |||
|  | // solution required | |||
|  | ``` | |||
|  | </section> |