47 lines
		
	
	
		
			857 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
		
		
			
		
	
	
			47 lines
		
	
	
		
			857 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
|   | --- | ||
|  | id: 5900f4a21000cf542c50ffb5 | ||
|  | title: 'Problem 310: Nim Square' | ||
|  | challengeType: 5 | ||
|  | forumTopicId: 301966 | ||
|  | dashedName: problem-310-nim-square | ||
|  | --- | ||
|  | 
 | ||
|  | # --description--
 | ||
|  | 
 | ||
|  | Alice and Bob play the game Nim Square. | ||
|  | 
 | ||
|  | Nim Square is just like ordinary three-heap normal play Nim, but the players may only remove a square number of stones from a heap. | ||
|  | 
 | ||
|  | The number of stones in the three heaps is represented by the ordered triple (a,b,c). | ||
|  | 
 | ||
|  | If 0≤a≤b≤c≤29 then the number of losing positions for the next player is 1160. | ||
|  | 
 | ||
|  | Find the number of losing positions for the next player if 0≤a≤b≤c≤100 000. | ||
|  | 
 | ||
|  | # --hints--
 | ||
|  | 
 | ||
|  | `euler310()` should return 2586528661783. | ||
|  | 
 | ||
|  | ```js | ||
|  | assert.strictEqual(euler310(), 2586528661783); | ||
|  | ``` | ||
|  | 
 | ||
|  | # --seed--
 | ||
|  | 
 | ||
|  | ## --seed-contents--
 | ||
|  | 
 | ||
|  | ```js | ||
|  | function euler310() { | ||
|  | 
 | ||
|  |   return true; | ||
|  | } | ||
|  | 
 | ||
|  | euler310(); | ||
|  | ``` | ||
|  | 
 | ||
|  | # --solutions--
 | ||
|  | 
 | ||
|  | ```js | ||
|  | // solution required | ||
|  | ``` |