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Posible solución en Haskell #19

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Jun 7, 2017
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Posible solución en Haskell #19

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74c1f8f
Posible Haskell Solution
felixgomez May 8, 2017
df37099
Changed code for optimization
felixgomez May 15, 2017
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4 changes: 4 additions & 0 deletions 201705/felixgomez/Reto.hs
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module Reto where
import Data.List
getSubsetsSumZero :: (Eq a, Num a) => [a] -> [[a]]
getSubsetsSumZero = filter ((==0) . sum) . subsequences
30 changes: 30 additions & 0 deletions 201705/felixgomez/Tests.hs
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import Reto
import Test.HUnit

dataTest = [
([1, 2, 3], False),
([-5, -3, -1, 2, 4, 6], True),
([], False),
([-1, 1], True),
([-97364, -71561, -69336, 19675, 71561, 97863], True),
([-53974, -39140, -36561, -23935, -15680, 0], True),
([-2, 2, 3], True),
([0], True),
([-3, 1, 2], True),
([-98634, -86888, -48841, -40483, 2612, 9225, 17848, 71967, 84319, 88875], True),
([-83314, -82838, -80120, -63468, -62478, -59378, -56958, -50061, -34791, -32264, -21928, -14988, 23767, 24417, 26403, 26511, 36399, 78055], False),
([-92953, -91613, -89733, -50673, -16067, -9172, 8852, 30883, 46690, 46968, 56772, 58703, 59150, 78476, 84413, 90106, 94777, 95148], False),
([-94624, -86776, -85833, -80822, -71902, -54562, -38638, -26483, -20207, -1290, 12414, 12627, 19509, 30894, 32505, 46825, 50321, 69294], False),
([-83964, -81834, -78386, -70497, -69357, -61867, -49127, -47916, -38361, -35772, -29803, -15343, 6918, 19662, 44614, 66049, 93789, 95405], False),
([-68808, -58968, -45958, -36013, -32810, -28726, -13488, 3986, 26342, 29245, 30686, 47966, 58352, 68610, 74533, 77939, 80520, 87195], False),
([-97162, -95761, -94672, -87254, -57207, -22163, -20207, -1753, 11646, 13652, 14572, 30580, 52502, 64282, 74896, 83730, 89889, 92200], True),
([-93976, -93807, -64604, -59939, -44394, -36454, -34635, -16483, 267, 3245, 8031, 10622, 44815, 46829, 61689, 65756, 69220, 70121], True),
([-92474, -61685, -55348, -42019, -35902, -7815, -5579, 4490, 14778, 19399, 34202, 46624, 55800, 57719, 60260, 71511, 75665, 82754], True),
([-85029, -84549, -82646, -80493, -73373, -57478, -56711, -42456, -38923, -29277, -3685, -3164, 26863, 29890, 37187, 46607, 69300, 84808], True),
([-87565, -71009, -49312, -47554, -27197, 905, 2839, 8657, 14622, 32217, 35567, 38470, 46885, 59236, 64704, 82944, 86902, 90487], True)]

testSubsetSumZero :: (Eq a, Num a) => ([a], Bool) -> Test
testSubsetSumZero (input, expected) = TestCase $ assertEqual "" (getSubsetsSumZero input /= [[]]) expected

tests :: Test
tests = TestList (map testSubsetSumZero dataTest)