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