Add 'universe/' from commit '8ad51b24dd'
				
					
				
			git-subtree-dir: universe git-subtree-mainline:15110e6de9git-subtree-split:8ad51b24dd
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		|  | @ -0,0 +1,33 @@ | |||
| import unittest | ||||
| 
 | ||||
| 
 | ||||
| ################################################################################ | ||||
| # Solution | ||||
| ################################################################################ | ||||
| # find_repeat :: [Int] -> Int | ||||
| def find_repeat(xs): | ||||
|     n = len(xs) - 1 | ||||
|     return sum(xs) - ((n**2 + n) / 2) | ||||
| 
 | ||||
| 
 | ||||
| ################################################################################ | ||||
| # Tests | ||||
| ################################################################################ | ||||
| class Test(unittest.TestCase): | ||||
|     def test_short_list(self): | ||||
|         actual = find_repeat([1, 2, 1]) | ||||
|         expected = 1 | ||||
|         self.assertEqual(actual, expected) | ||||
| 
 | ||||
|     def test_medium_list(self): | ||||
|         actual = find_repeat([4, 1, 3, 4, 2]) | ||||
|         expected = 4 | ||||
|         self.assertEqual(actual, expected) | ||||
| 
 | ||||
|     def test_long_list(self): | ||||
|         actual = find_repeat([1, 5, 9, 7, 2, 6, 3, 8, 2, 4]) | ||||
|         expected = 2 | ||||
|         self.assertEqual(actual, expected) | ||||
| 
 | ||||
| 
 | ||||
| unittest.main(verbosity=2) | ||||
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