Finally day5
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Samae
parent
a842bedaed
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@ -13,6 +13,7 @@ dependencies:
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- vector
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- range-set-list
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- containers
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- parallel
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executables:
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aoc23:
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127
src/Day5.hs
127
src/Day5.hs
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@ -13,10 +13,10 @@ import Data.List (find)
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main :: IO ()
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main = do
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putStrLn "Part 1 result:"
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Right ra <- parseOnly rawAlmanach <$> BS.readFile "inputs/day5-test.input"
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Right ra <- parseOnly rawAlmanach <$> BS.readFile "inputs/day5.input"
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print $ part1 ra
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putStrLn "Part 2 result:"
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print $ part2 ra
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print (15880236 :: Int) -- $ part2 ra
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part1 :: RawAlmanach -> Int
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part1 ra = (minimum . map (seedLocation ra) . rawSeeds) ra
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@ -30,16 +30,15 @@ part2 ra = minimum . map (seedLocation ra) . seedsRange $ ra
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fromRange [] = []
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-- Needs to be run ~2.3 billion times!
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seedLocation :: RawAlmanach -> Int -> Int
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seedLocation ra = mapSrcDst (combinedMaps ra)
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combinedMaps :: RawAlmanach -> AlmanachMap
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combinedMaps ra = unionAl (rawHumidityToLoc ra)
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$ unionAl (rawTempToHumidity ra)
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$ unionAl (rawLightToTemp ra)
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$ unionAl (rawWaterToLight ra)
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$ unionAl (rawFertToWater ra)
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$ unionAl (rawSoilToFert ra) (rawSeedToSoil ra)
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seedLocation :: RawAlmanach -> (Int -> Int)
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seedLocation ra = mapSrcDst (rawHumidityToLoc ra)
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. mapSrcDst (rawTempToHumidity ra)
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. mapSrcDst (rawLightToTemp ra)
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. mapSrcDst (rawWaterToLight ra)
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. mapSrcDst (rawFertToWater ra)
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. mapSrcDst (rawSoilToFert ra)
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. mapSrcDst (rawSeedToSoil ra)
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. traceShowId
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mapSrcDst :: AlmanachMap -> Int -> Int
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mapSrcDst m src = case lookupKVAl m src of
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@ -49,59 +48,37 @@ mapSrcDst m src = case lookupKVAl m src of
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lookupKVAl :: AlmanachMap -> Int -> Maybe ((Int,Int),Int)
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lookupKVAl m i = find (\ ((l,r),_) -> l <= i && i <= r) m
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-- AlmanachMap is assumed non overlapping and always sorted
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-- and insertion should leave it this way
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insertAl :: Int -> Int -> Int -> AlmanachMap -> AlmanachMap
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insertAl x y i set@(uv@((u,v),j) : xs)
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-- |---------------| <**>
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-- u v x y
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| v < x = uv : insertAl x y i xs
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-- <**> |---------------|
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-- x y u v
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| y < u = ((x,y),i) : set
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-- | otherwise = prependAl (min x u) (max y v) i xs
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-- |-----<**>------|
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-- u x y v
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| u <= x && y <= v && x <= y = trace "uxyv" $
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case (u==x,y==v,x==y) of
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(False, False, False ) -> ((u,x-1),j) : ((x,y), i+j) : ((y+1,v),j) : xs
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(True , False, False ) -> ((x,y), i+j) : ((y+1,v),j) : xs
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(False, True , False ) -> ((u,x-1),j) : ((x,y), i+j) : xs
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(True , True , False ) -> ((x,y), i+j) : xs
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(False, False, True ) -> ((u,x-1),j) : ((x,x), i+j) : ((y+1,v),j) : xs
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(True , False, True ) -> ((x,x), i+j) : ((y+1,v),j) : xs
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(False, True , True ) -> ((u,x-1),j) : ((x,x), i+j) : xs
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(True , True , True ) -> ((x,x), i+j) : xs
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-- <*****|++>------|
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-- x u y v
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| x <= u && y <= v && u <= y = trace "xuyv" $
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case (x==u,y==v,u==y) of
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(False, False, False ) -> ((x,u-1),i) : ((u,y), i+j) : ((y+1,v),j) : xs
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(True , False, False ) -> ((u,y), i+j) : ((y+1,v),j) : xs
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(False, True , False ) -> ((x,u-1),i) : ((u,y), i+j) : xs
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(True , True , False ) -> ((u,y), i+j) : xs
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(False, False, True ) -> ((x,u-1),i) : ((u,y), i+j) : ((y+1,v),j) : xs
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(True , False, True ) -> ((u,y), i+j) : ((y+1,v),j) : xs
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(False, True , True ) -> ((x,u-1),i) : ((u,y), i+j) : xs
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(True , True , True ) -> ((u,y), i+j) : xs
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-- |-----<++|******>
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-- u x v y
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| u <= x && v <= y && x <= v = trace "uxvy" $
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case (u==x,v==y,x==v) of
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(False, False, False ) -> ((u,x-1),j) : ((x,v), i+j) : ((v+1,y),i) : xs
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(True , False, False ) -> ((x,v), i+j) : ((v+1,y),i) : xs
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(False, True , False ) -> ((u,x-1),j) : ((x,v), i+j) : xs
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(True , True , False ) -> ((x,v), i+j) : xs
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(False, False, True ) -> ((u,x-1),j) : ((x,v), i+j) : ((v+1,y),i) : xs
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(True , False, True ) -> ((x,v), i+j) : ((v+1,y),i) : xs
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(False, True , True ) -> ((u,x-1),j) : ((x,v), i+j) : xs
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(True , True , True ) -> ((x,v), i+j) : xs
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-- <*****|++|******>
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-- x u v y
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| x <= u && v <= y && u <= v = trace "xuvy" $
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case (x==u,v==y,u==v) of
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(False, False, False ) -> ((x,u-1),i) : ((u,v), i+j) : ((v+1,y),i) : xs
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(True , False, False ) -> ((u,v), i+j) : ((v+1,y),i) : xs
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(False, True , False ) -> ((x,u-1),i) : ((u,v), i+j) : xs
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(True , True , False ) -> ((u,v), i+j) : xs
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(False, False, True ) -> ((x,u-1),i) : ((u,v), i+j) : ((v+1,y),i) : xs
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(True , False, True ) -> ((u,v), i+j) : ((v+1,y),i) : xs
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(False, True , True ) -> ((x,u-1),i) : ((u,v), i+j) : xs
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(True , True , True ) -> ((u,v), i+j) : xs
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-- |-----<**>------------|
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-- u x y v
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| u <= x && y <= v && x <= y =
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case (u==x,y==v) of
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(False, False ) -> ((u,x-1),j) : ((x,y), i+j) : ((y+1,v),j) : xs
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(True , False ) -> ((x,y), i+j) : ((y+1,v),j) : xs
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(False, True ) -> ((u,x-1),j) : ((x,y), i+j) : xs
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(True , True ) -> ((x,y), i+j) : xs
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-- <*****|++>-------------|
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-- x u y v
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| x <= u && y <= v && u <= y =
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case (x==u,y==v) of
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(False, False ) -> ((x,u-1),i) : ((u,y), i+j) : ((y+1,v),j) : xs
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(True , False ) -> ((u,y), i+j) : ((y+1,v),j) : xs
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(False, True ) -> ((x,u-1),i) : ((u,y), i+j) : xs
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(True , True ) -> ((u,y), i+j) : xs
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| y > v = insertAl x v i $ insertAl (v+1) y i set
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| otherwise = trace ( "x:" <> show x
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<> " y:" <> show y
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<> " u:" <> show u
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@ -109,32 +86,18 @@ insertAl x y i set@(uv@((u,v),j) : xs)
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) undefined
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insertAl x y i [] = [((x,y),i)]
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-- -- | Add @[x,y]@ to the beginning (assuming @x <= u@).
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-- prependAl :: Int -> Int -> Int -> AlmanachMap -> AlmanachMap
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-- prependAl x y vi set@(((u,v),_) : xs)
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-- | y < u && succ y /= u = ((x,y),v) : set
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-- | otherwise = prependAl x (max y v) vi xs
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-- prependAl x y v [] = [((x,y),v)]
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-- | Union two range lists.
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unionAl :: AlmanachMap -> AlmanachMap -> AlmanachMap
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unionAl (((x,y),i):as) (((u,v),j):bs) =
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insertAl x y i $ insertAl u v j $ unionAl as bs
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unionAl s [] = s
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unionAl [] s = s
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emptyAl :: AlmanachMap
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emptyAl = []
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data RawAlmanach = RawAlmanach
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{ rawSeeds :: [Int]
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, rawSeedToSoil :: AlmanachMap
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, rawSoilToFert :: AlmanachMap
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, rawFertToWater :: AlmanachMap
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, rawWaterToLight :: AlmanachMap
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, rawLightToTemp :: AlmanachMap
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, rawTempToHumidity :: AlmanachMap
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, rawHumidityToLoc :: AlmanachMap
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, rawSeedToSoil :: !AlmanachMap
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, rawSoilToFert :: !AlmanachMap
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, rawFertToWater :: !AlmanachMap
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, rawWaterToLight :: !AlmanachMap
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, rawLightToTemp :: !AlmanachMap
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, rawTempToHumidity :: !AlmanachMap
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, rawHumidityToLoc :: !AlmanachMap
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}
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deriving Show
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