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#!/usr/bin/runhaskell | |
import Control.Applicative | |
import Data.List | |
import Data.Maybe | |
import qualified Data.Set as S | |
type Board = [[Char]] | |
type Point = (Int, Int) | |
data Direction = N | S | E | W deriving (Eq, Ord) |
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host unix? | |
hostname %h.csc.calpoly.edu | |
user cjford |
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balanced :: Int -> Int -> String -> Bool | |
balanced hi _ _ | hi < 0 = False | |
balanced hi lo xs | lo < 0 = balanced hi 0 xs | |
balanced _ lo "" = lo == 0 | |
balanced hi lo ('(':xs) = balanced (hi + 1) (lo + 1) xs | |
balanced hi lo (')':xs) = balanced (hi - 1) (lo - 1) xs | |
balanced hi lo (':':'(':xs) = balanced (hi + 1) lo xs | |
balanced hi lo (':':')':xs) = balanced hi (lo - 1) xs | |
balanced hi lo (_:xs) = balanced hi lo xs |
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doCase n = do | |
s <- getLine | |
putStrLn $ "Case #" ++ show n ++ ": " | |
main = do | |
n <- getLine | |
mapM_ doCase [1..read n] |
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#include <stdio.h> | |
#include <unistd.h> | |
#include <stdlib.h> | |
int main () { | |
printf("1: %s\n", getenv("PWD")); | |
setenv("PWD", "/etc", 1); | |
printf("2: %s\n", getenv("PWD")); | |
execl("/usr/bin/printenv", "/usr/bin/printenv", "PWD", NULL); | |
} |
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import Data.List | |
import qualified Data.Map as Map | |
type WordMap = Map.Map String [Int] | |
wordsByLine _ [] = Map.empty | |
wordsByLine n (s:ss) = Map.unionWith (++) (Map.fromList [(w, [n]) | w <- nub $ words s]) | |
(wordsByLine (n + 1) ss) | |
printWords = mapM_ (putStrLn . formatWord) . Map.toList |
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