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Added Haskell Implementations and changed directory structure

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Julia Lange 2021-12-08 15:34:05 -08:00
parent 9f40c27eb9
commit cb9dee889b
Signed by: Julia
SSH key fingerprint: SHA256:KI8YxpkPRbnDRkXPgCuQCVz181++Vy7NAvmQj8alOhM
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Haskell/2021/05/day5_1.hs Normal file
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fand :: Bool -> Bool -> Bool
fand a b
| a == b = True
| otherwise = false
numberIntersections :: ((Integer, Integer), (Integer, Integer)) -> ((Integer, Integer), (Integer, Integer)) -> Int
numberIntersections ls1 ls2
| fand (orien11 /= orien12) (orien21 /= orien22) = 1
|
where orien11 = orientation (fst ls1) (snd ls1) (fst ls2)
orien12 = orientation (fst ls1) (snd ls1) (snd ls2)
orien21 = orientation (fst ls2) (snd ls2) (fst ls1)
orien22 = orientation (fst ls2) (snd ls2) (snd ls1)
onSegment :: (Integer, Integer) -> (Integer, Integer) -> (Integer, Integer) -> Int
onSegment p q r =
onSegmentFst :: Integer -> Integer -> Integer -> Bool
onSegmentFst p q r = fand (onSegmentLE (fst q) (fst p) (fst r)) (onSegmentGE (fst q) (fst p) (fst r))
onSegmentSnd :: Integer -> Integer -> Integer -> Bool
onSegmentSnd p q r = fand (onSegmentLE (snd q) (snd p) (snd r)) (onSegmentGE (snd q) (snd p) (snd r))
onSegmentGE :: Integer -> Integer -> Integer -> Bool
onSegmentGE a b c = a >= (min b c)
onSegmentLE :: Integer -> Integer -> Integer -> Bool
onSegmentLE a b c = a <= (max b c)
orientation :: (Integer, Integer) -> (Integer, Integer) -> (Integer, Integer) -> Int
orientation p q r
| value == 0 = 0 -- Collinear
| value > 0 = 1 -- Clockwise
| otherwise = -1 -- CounterClockwise
where value = ((snd q) - (snd p)) * ((fst r) - (fst q)) - ((fst q) - (fst p)) * ((snd r) - (snd q))
dummyInput = [((0,9),(5,9)),((8,0),(0,8)),((9,4),(3,4)),((2,2),(2,1)),((7,0),(7,4)),((6,4),(2,0)),((0,9),(2,9)),((3,4),(1,4)),((0,0),(8,8)),((5,5),(8,2))]