* fix: clean-up Project Euler 221-240 * fix: corrections from review Co-authored-by: Tom <20648924+moT01@users.noreply.github.com> Co-authored-by: Tom <20648924+moT01@users.noreply.github.com>
		
			
				
	
	
		
			41 lines
		
	
	
		
			744 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
			
		
		
	
	
			41 lines
		
	
	
		
			744 B
		
	
	
	
		
			Markdown
		
	
	
	
	
	
---
 | 
						|
id: 5900f44b1000cf542c50ff5e
 | 
						|
title: 'Problem 223: Almost right-angled triangles I'
 | 
						|
challengeType: 5
 | 
						|
forumTopicId: 301866
 | 
						|
dashedName: problem-223-almost-right-angled-triangles-i
 | 
						|
---
 | 
						|
 | 
						|
# --description--
 | 
						|
 | 
						|
Let us call an integer sided triangle with sides $a ≤ b ≤ c$ barely acute if the sides satisfy $a^2 + b^2 = c^2 + 1$.
 | 
						|
 | 
						|
How many barely acute triangles are there with perimeter $≤ 25\\,000\\,000$?
 | 
						|
 | 
						|
# --hints--
 | 
						|
 | 
						|
`almostRightAngledTrianglesOne()` should return `61614848`.
 | 
						|
 | 
						|
```js
 | 
						|
assert.strictEqual(almostRightAngledTrianglesOne(), 61614848);
 | 
						|
```
 | 
						|
 | 
						|
# --seed--
 | 
						|
 | 
						|
## --seed-contents--
 | 
						|
 | 
						|
```js
 | 
						|
function almostRightAngledTrianglesOne() {
 | 
						|
 | 
						|
  return true;
 | 
						|
}
 | 
						|
 | 
						|
almostRightAngledTrianglesOne();
 | 
						|
```
 | 
						|
 | 
						|
# --solutions--
 | 
						|
 | 
						|
```js
 | 
						|
// solution required
 | 
						|
```
 |