mirror of https://github.com/sharkdp/bat.git
48 lines
1.2 KiB
Plaintext
48 lines
1.2 KiB
Plaintext
\documentclass{article}
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\begin{document}
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\section*{Introduction}
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Text outside code environments should follow TeX/LaTeX highlighting.
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The code environment delimiters themselves should be highlighted.
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Text inside code environments should follow regular Haskell highlighting.
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\begin{code}
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import Data.List
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import System.Environment
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import Text.Printf
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twoSumN :: Int -> [Int] -> [Int]
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twoSumN _ [] = []
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twoSumN n (x : xs) | (n - x) `elem` xs = [x, n - x]
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| otherwise = twoSumN n xs
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threeSumN :: Int -> [Int] -> [Int]
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threeSumN _ [] = []
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threeSumN n (x : xs) | null partial = threeSumN n xs
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| otherwise = x : partial
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where partial = twoSumN (n - x) xs
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\end{code}
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Text in-between code environments.
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% LaTeX comment.
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\begin{code}
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output :: String -> IO ()
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output path = do
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input <- sort . map read . filter (not . null) . lines <$> readFile path
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printf "File: %s\n" path
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printf " Part 1: %d\n" . product . twoSumN 2020 $ input
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printf " Part 2: %d\n" . product . threeSumN 2020 $ input
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-- Haskell comment inside code environment.
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main :: IO ()
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main = getArgs >>= mapM_ output
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\end{code}
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\end{document}
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