41 lines
		
	
	
		
			647 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
		
		
			
		
	
	
			41 lines
		
	
	
		
			647 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
|   | --- | ||
|  | id: 5900f44e1000cf542c50ff5f | ||
|  | title: 'Problem 224: Almost right-angled triangles II' | ||
|  | challengeType: 5 | ||
|  | forumTopicId: 301867 | ||
|  | dashedName: problem-224-almost-right-angled-triangles-ii | ||
|  | --- | ||
|  | 
 | ||
|  | # --description--
 | ||
|  | 
 | ||
|  | Let us call an integer sided triangle with sides a ≤ b ≤ c barely obtuse if the sides satisfy a2 + b2 = c2 - 1. | ||
|  | 
 | ||
|  | How many barely obtuse triangles are there with perimeter ≤ 75,000,000? | ||
|  | 
 | ||
|  | # --hints--
 | ||
|  | 
 | ||
|  | `euler224()` should return 4137330. | ||
|  | 
 | ||
|  | ```js | ||
|  | assert.strictEqual(euler224(), 4137330); | ||
|  | ``` | ||
|  | 
 | ||
|  | # --seed--
 | ||
|  | 
 | ||
|  | ## --seed-contents--
 | ||
|  | 
 | ||
|  | ```js | ||
|  | function euler224() { | ||
|  | 
 | ||
|  |   return true; | ||
|  | } | ||
|  | 
 | ||
|  | euler224(); | ||
|  | ``` | ||
|  | 
 | ||
|  | # --solutions--
 | ||
|  | 
 | ||
|  | ```js | ||
|  | // solution required | ||
|  | ``` |