Backup before I fuck everything up
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import Data.List.Split
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main = do
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content <- getList <$> getContents
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let input = changeInput content 12 2
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putStrLn (show (compute input input 0))
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getList :: String -> [Int]
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getList = map read . splitOn ","
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changeInput :: [Int] -> Int -> Int -> [Int]
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changeInput (begin:_:_:input) input1 input2= [begin] ++ [input1] ++ [input2] ++ input
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func :: [Int] -> Int -> Int -> Int
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func xs x y = do
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let input = changeInput xs x y
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head (compute input input 0)
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compute :: [Int] -> [Int] -> Int -> [Int]
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compute (99:_) state index = state
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compute (op:x:y:z:_) state index =
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compute (drop newindex state) newstate newindex
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where
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sum = if op == 1 then
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(state !! x) + (state !! y)
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else
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(state !! x) * (state !! y)
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split = splitAt z state
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newstate = (fst split) ++ [sum] ++ (drop 1 (snd split))
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newindex = index + 4
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operation :: [Int] -> [Int] -> Int -> [Int]
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operation (1:x:y:z:_) state index = operation (drop newindex state) newstate newindex
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where
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sum = (state !! x) + (state !! y)
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split = splitAt z state
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newstate = (fst split) ++ [sum] ++ (drop 1(snd split))
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newindex = index + 4
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operation (2:x:y:z:_) state index = operation (drop newindex state) newstate newindex
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where
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sum = (state !! x) * (state !! y)
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split = splitAt z state
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newstate = (fst split) ++ [sum] ++ (drop 1 (snd split))
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newindex = index + 4
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operation (3:z:_) state index = operation (drop newindex state) newstate newindex
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where
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split = splitAt z state
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newstate = insert state (1) z
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newindex = index + 2
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operation (4:z:_) state index = do
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putStrLn( show (state !! z ))
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let newindex = index + 2
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operation (drop newindex state) state newindex
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insert :: [Int] -> Int -> Int -> [Int]
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insert xs value index = do
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let split = splitAt index xs
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(fst split)++ [value] ++ (drop 1 (snd split))
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