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This commit is contained in:
Arranun 2019-12-07 15:16:35 +01:00
parent 0a2c29bb8c
commit 576761c82c
1 changed files with 53 additions and 15 deletions
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68
day7.hs
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@ -1,14 +1,21 @@
import Data.List.Split
import Data.Char as Char
import Data.List as List
import Data.Either as Either
main = do
software <- getList <$> getContents
--let output = operation state state 0 input []
let combs = getComb [4,3,2,1,0]
let output = List.maximum ( map (\x-> calcthruster software x) combs )
let combs = getComb [5,6,7,8,9]
mapM putStrLn(map show combs)
mapM putStrLn(map show ( map (\x-> part2 $ prepareAmps x software ) combs ))
-- let output = calcthruster software [4,3,2,1,0]
putStrLn (show output)
data Amplifier = Amplifier{ state :: [Int]
,index :: Int
,input :: [Int]
,output :: [Int] }
type Outputtype = Either [Int] Amplifier
getList :: String -> [Int]
getList = map read . splitOn ","
@ -16,19 +23,49 @@ getList = map read . splitOn ","
getComb :: [Int] -> [[Int]]
getComb array = filter ((5==).length.(List.nub)) $ mapM (const array) [1..5]
calcthruster :: [Int] -> [Int] -> Int
calcthruster software (p1:p2:p3:p4:p5:_) = do
let outputA = operation software software 0 [p1, 0] []
let outputB = operation software software 0 [p2, last outputA] []
let outputC = operation software software 0 [p3, last outputB] []
let outputD = operation software software 0 [p4, last outputC] []
let outputE = operation software software 0 [p5, last outputD] []
last outputE
prepareAmps :: [Int] -> [Int] -> [Amplifier]
prepareAmps (p1:p2:p3:p4:p5:_) software = do
let a = step (Amplifier software 0 [] []) [p1]
let b = step (Amplifier software 0 [] []) [p2]
let c = step (Amplifier software 0 [] []) [p3]
let d = step (Amplifier software 0 [] []) [p4]
let e = step (Amplifier software 0 [] []) [p5]
let e = Amplifier (state e) (index e) (input e) [0]
[a,b,c,d,e]
part2 :: [Amplifier] -> Int
part2 amps = do
let ampA = link (amps!!4) (amps!!0)
let ampB = link (amps!!0) (amps!!1)
let ampC = link (amps!!1) (amps!!2)
let ampD = link (amps!!2) (amps!!3)
let ampE = link (amps!!3) (amps!!4)
if state ampE == [88]
then head (output (amps!!4))
else part2 [ampA,ampB,ampC,ampD,ampE]
link :: Amplifier -> Amplifier -> Amplifier
link left calc
| length (output left) == 0 = Amplifier ([88]) (index calc) (input calc) (output calc)
| otherwise = step calc [last $ output left]
step :: Amplifier -> [Int] -> Amplifier
step amp input = operation (drop (index amp) (state amp)) (state amp) (index amp) input []
operation :: [Int] -> [Int] -> Int -> [Int] -> [Int] -> [Int]
calcthrusters :: [Int] -> [Int] -> Int -> Int
calcthrusters software (p1:p2:p3:p4:p5:_) start = do
let outputA = operation software software 0 [p1, start] []
let outputB = operation software software 0 [p2, last $ output outputA] []
let outputC = operation software software 0 [p3, last $ output outputB] []
let outputD = operation software software 0 [p4, last $ output outputC] []
let outputE = operation software software 0 [p5, last $ output outputD] []
last $ output outputE
operation :: [Int] -> [Int] -> Int -> [Int] -> [Int] -> Amplifier
operation (99:_) state index input output =
output
Amplifier state index input output
operation (op:x:y:z:_) state index input output
| last (digits op) == 1 = do
let newindex = index + 4
@ -37,7 +74,8 @@ operation (op:x:y:z:_) state index input output
| last (digits op) == 2 = do
let newindex = index + 4
let newstate = mult (fillup (revertdigs op) 5) x y z state
operation (drop newindex newstate) newstate newindex input output
Amplifier state newindex input output
--operation (drop newindex newstate) newstate newindex input output
| last (digits op) == 3 = do
let newindex = index + 2
let newstate = put (fillup (revertdigs op) 3) x (head input) state
@ -46,7 +84,7 @@ operation (op:x:y:z:_) state index input output
| last (digits op) == 4 = do
let newindex = index + 2
let newoutput = out (fillup (revertdigs op) 3) output x state
let newinput = drop 1 input
let newinput = drop 1 input
operation (drop newindex state) state newindex input newoutput
| (last (digits op) == 5 ) = do
let newindex = jumpif (fillup (revertdigs op) 4) x y index state