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import qualified Data.Map.Strict as Map | |
import Data.List (inits, tails, any) | |
match "" "" _ = True | |
match "" _ _ = False | |
match _ "" _ = False | |
match expr text matches = let | |
possibilities = zip (tail $ inits text) (tail $ tails text) | |
pattern = head expr | |
expr' = tail expr |
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#!/usr/bin/env stack | |
{- stack | |
--resolver lts-6.24 | |
runghc | |
--package attoparsec | |
--package pipes-bytestring | |
--package containers | |
--package pipes-zlib -} | |
{-# LANGUAGE OverloadedStrings #-} |
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#!/usr/bin/env stack | |
{- stack | |
--resolver lts-6.24 | |
runghc | |
--package attoparsec | |
--package pipes-bytestring | |
--package containers | |
--package pipes-zlib -} | |
{-# LANGUAGE OverloadedStrings #-} |
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import Data.List (inits, tails) | |
partitionSum [] n = n | |
partitionSum ls n = let | |
pairs = zip (tail $ inits ls) (tail $ tails ls) | |
pass = filter (\(l,r) -> (sum l) == (sum r)) pairs | |
maxes = map (\(l,r) -> max (partitionSum l (n+1)) (partitionSum r (n+1))) pass | |
in if (maxes == []) then n else (maximum maxes) | |
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#!/usr/bin/env stack | |
{- stack --resolver lts-7 --install-ghc runghc | |
--package aeson | |
--package servant-server | |
--package text | |
--package transformers | |
--package unordered-containers | |
--package warp | |
-} |
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import Data.List | |
count8s number = let | |
len = length $ filter (\string -> (read string :: Int) `mod` 8 == 0) $ tail $ subsequences number | |
in len `mod` (10^9+7) |
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module Owl where | |
import System.FilePath ((</>)) | |
fromMaybe :: a -> Maybe a -> a | |
fromMaybe a m = case m of | |
Nothing -> a | |
Just b -> b | |
prependPath :: FilePath -> FilePath -> FilePath |
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{ nixpkgs ? import <nixpkgs> {}, compiler ? "default" }: | |
let | |
inherit (nixpkgs) pkgs; | |
f = { mkDerivation, base, base-orphans, bifunctors, containers | |
, data-pprint, deepseq, deepseq-generics, directory, either | |
, hashable, haskell-src-exts, hood, lens, mmorph, mtl, multistate | |
, parsec, pqueue, pretty, process, safe, split, stdenv |
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{-# LANGUAGE LambdaCase #-} | |
{-# LANGUAGE NamedFieldPuns #-} | |
{-# LANGUAGE ScopedTypeVariables #-} | |
import qualified Data.Graph as G | |
import qualified Data.Array as A | |
import qualified Prelude as P | |
import Prelude hiding (lookup, read, replicate) |