-import Debug.Trace
+import Intcode
-import Data.Text (Text)
+-- import Data.Text (Text)
import qualified Data.Text.IO as TIO
-import Data.Void (Void)
-
-import Text.Megaparsec hiding (State)
-import Text.Megaparsec.Char
-import qualified Text.Megaparsec.Char.Lexer as L
-import qualified Control.Applicative as CA
-
--- import Control.Monad (unless)
-import Control.Monad.State.Strict
-import Control.Monad.Reader
-import Control.Monad.Writer
-import Control.Monad.RWS.Strict
-
-
-import qualified Data.Map.Strict as M
-import Data.Map.Strict ((!))
-import Data.List
--- import Data.Function (on)
-
-type Memory = M.Map Integer Integer
-
-data Machine = Machine { _memory :: Memory
- , _ip :: Integer
- , _inputIndex :: Int
- , _rb :: Integer
- }
- deriving (Show, Eq)
-
-type ProgrammedMachine = RWS [Integer] [Integer] Machine
-
-data ExecutionState = Runnable | Blocked | Terminated deriving (Ord, Eq, Show)
-
-data ParameterMode = Position | Immediate | Relative deriving (Ord, Eq, Show)
-
-
main :: IO ()
main = do
text <- TIO.readFile "data/advent09.txt"
- let mem = successfulParse text
+ let mem = parseMachineMemory text
print $ part1 mem
print $ part2 mem
+part1 mem = head output
+ where (_, _, output) = runProgram [1] mem
-part1 mem = findMachineOutput [1] mem
-
-part2 mem = findMachineOutput [2] mem
-
-
-findMachineOutput :: [Integer] -> [Integer] -> [Integer]
-findMachineOutput inputs program = output
- where (_haltedBecause, _machine, output) = runRWS runAll inputs (makeMachine program)
-
-
-makeMachine :: [Integer] -> Machine
-makeMachine memory = Machine {_ip = 0, _inputIndex = 0, _rb = 0
- , _memory = M.fromList $ zip [0..] memory
- }
-
-
-runAll :: ProgrammedMachine ExecutionState
-runAll = do mem <- gets _memory
- ip <- gets _ip
- input <- ask
- iIndex <- gets _inputIndex
- let acutalInputLength = length input
- let requiredInputLength = iIndex + 1
- if (mem!ip == 99)
- then return Terminated
- else if (mem!ip == 3 && requiredInputLength > acutalInputLength)
- then return Blocked
- else do runStep
- runAll
-
-runStep :: ProgrammedMachine ()
-runStep =
- do mem <- gets _memory
- ip <- gets _ip
- rb <- gets _rb
- let opcode = (mem!ip) `mod` 100
- let modes = parameterModes ((mem!ip) `div` 100)
- fetchInput opcode modes
- putOutput opcode modes
- mem' <- gets _memory
- let (mem'', ip', rb') = perform opcode ip modes rb mem'
- modify (\m -> m {_ip = ip', _memory = mem'', _rb = rb'})
-
-fetchInput :: Integer -> [ParameterMode] -> ProgrammedMachine ()
--- fetchInput opcode _modes | trace ("Input with opcode " ++ show opcode) False = undefined
-fetchInput 3 modes =
- do mem <- gets _memory
- ip <- gets _ip
- rb <- gets _rb
- inputIndex <- gets _inputIndex
- inputs <- ask
- let mem' = iInsert (ip + 1) (modes!!0) rb (inputs!!inputIndex) mem
- modify (\m -> m {_inputIndex = inputIndex + 1, _memory = mem'})
-fetchInput _ _ = return ()
-
-putOutput :: Integer -> [ParameterMode] -> ProgrammedMachine ()
--- putOutput opcode _modes | trace ("Output with opcode " ++ show opcode) False = undefined
-putOutput 4 modes =
- do mem <- gets _memory
- ip <- gets _ip
- rb <- gets _rb
- let v = getMemoryValue (ip + 1) (modes!!0) rb mem
- tell [v]
-putOutput _ _ = return ()
-
-
-perform :: Integer -> Integer -> [ParameterMode] -> Integer -> Memory -> (Memory, Integer, Integer)
--- perform instr ip modes rb mem | trace ("Perform ip " ++ show ip ++ " opcode " ++ show instr ++ " modes " ++ (show (take 3 modes)) ++ " rb " ++ (show rb) ++ " args " ++ (intercalate ", " (map show [(mem!(ip+1)), (mem!(ip+2)), (mem!(ip+3))]))) False = undefined
-perform 1 ip modes rb mem = (iInsert (ip + 3) (modes!!2) rb (a + b) mem, ip + 4, rb)
- where a = getMemoryValue (ip + 1) (modes!!0) rb mem
- b = getMemoryValue (ip + 2) (modes!!1) rb mem
-perform 2 ip modes rb mem = (iInsert (ip + 3) (modes!!2) rb (a * b) mem, ip + 4, rb)
- where a = getMemoryValue (ip + 1) (modes!!0) rb mem
- b = getMemoryValue (ip + 2) (modes!!1) rb mem
-perform 3 ip _ rb mem = (mem, ip + 2, rb)
-perform 4 ip _ rb mem = (mem, ip + 2, rb)
-perform 5 ip modes rb mem = (mem, ip', rb)
- where a = getMemoryValue (ip + 1) (modes!!0) rb mem
- b = getMemoryValue (ip + 2) (modes!!1) rb mem
- ip' = if a /= 0 then b else ip + 3
-perform 6 ip modes rb mem = (mem, ip', rb)
- where a = getMemoryValue (ip + 1) (modes!!0) rb mem
- b = getMemoryValue (ip + 2) (modes!!1) rb mem
- ip' = if a == 0 then b else ip + 3
-perform 7 ip modes rb mem = (iInsert (ip + 3) (modes!!2) rb res mem, ip + 4, rb)
- where a = getMemoryValue (ip + 1) (modes!!0) rb mem
- b = getMemoryValue (ip + 2) (modes!!1) rb mem
- res = if a < b then 1 else 0
-perform 8 ip modes rb mem = (iInsert (ip + 3) (modes!!2) rb res mem, ip + 4, rb)
- where a = getMemoryValue (ip + 1) (modes!!0) rb mem
- b = getMemoryValue (ip + 2) (modes!!1) rb mem
- res = if a == b then 1 else 0
-perform 9 ip modes rb mem = (mem, ip + 2, rb + a)
- where a = getMemoryValue (ip + 1) (modes!!0) rb mem
-perform _ ip _ rb mem = (mem, ip, rb)
-
-
-getMemoryValue :: Integer -> ParameterMode -> Integer -> Memory -> Integer
-getMemoryValue loc Position rb mem = getMemoryValue loc' Immediate rb mem
- where loc' = M.findWithDefault 0 loc mem
-getMemoryValue loc Immediate _ mem = M.findWithDefault 0 loc mem
-getMemoryValue loc Relative rb mem = getMemoryValue loc' Immediate 0 mem
- where loc' = rb + M.findWithDefault 0 loc mem
-
--- indirect insert
-iInsert :: Integer -> ParameterMode -> Integer -> Integer -> Memory -> Memory
-iInsert loc Position _rb value mem = M.insert loc' value mem
- where loc' = M.findWithDefault 0 loc mem
-iInsert loc Immediate _rb value mem = M.insert loc value mem
-iInsert loc Relative rb value mem = M.insert loc' value mem
- where loc' = rb + M.findWithDefault 0 loc mem
-
-parameterModes :: Integer -> [ParameterMode]
-parameterModes modeCode = unfoldr generateMode modeCode
-
-generateMode :: Integer -> Maybe (ParameterMode, Integer)
-generateMode modeCode = Just (mode, modeCode `div` 10)
- where mode = case (modeCode `mod` 10) of
- 0 -> Position
- 1 -> Immediate
- 2 -> Relative
-
--- Parse the input file
-type Parser = Parsec Void Text
-
-sc :: Parser ()
-sc = L.space (skipSome spaceChar) CA.empty CA.empty
--- sc = L.space (skipSome (char ' ')) CA.empty CA.empty
-
-lexeme = L.lexeme sc
-integer = lexeme L.decimal
-signedInteger = L.signed sc integer
-symb = L.symbol sc
-comma = symb ","
-
-memoryP = signedInteger `sepBy` comma
+part2 mem = head output
+ where (_, _, output) = runProgram [2] mem
-successfulParse :: Text -> [Integer]
-successfulParse input =
- case parse memoryP "input" input of
- Left _err -> [] -- TIO.putStr $ T.pack $ parseErrorPretty err
- Right memory -> memory
projects / advent-of-code-19.git / blobdiff