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# AOC 2018 day 23 solution to defeat adversarial input (python3)
# Adversarial input sample can be found https://pastebin.com/raw/9eJQN836
# This will try to open the file given as the first command line argument
# or "aoc23.in.txt" if no argument is given.

# This solution transforms the given coordinates in x-y-z space into 4D
# coordinates in a space I call s-t-u-v space, even though I never actually
# deal with 's', 't', 'u', or 'v' directly.

import itertools

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-- This is the first Haskell program of any complexity that I ever wrote, back in October 2005,
-- updated (with newer imports and one changed function name) to run on modern (c. 2017)
-- GHC. It was designed to solve a perl quiz of the week problem to write a Turing
-- Machine emulator. Unfortunately, that mailing list has been defunct for so long that
-- all archives seem to have vanished from the web so I can't point to documentation of
-- the format. I can however point to one program I wrote in the Turing Machine language
-- that solved the prior quiz-of-the-week: given a number N, print out all strings
-- consisting of N '(' characters and N ')' characters such that the parens in the
-- resulting string are balanced.
--

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-- SPOILER for project euler #14


-- Really, you should go do it yourself.

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import qualified Data.Map.Strict as M

-- The code in any functions here should be too small to really be coverable by copyright, but just in case:
{-
Copyright 2014 Daniel Martin

I, Daniel Martin, license this to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License.  You may obtain a copy of the License at

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{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE FunctionalDependencies #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE RankNTypes #-}
{-# LANGUAGE Arrows #-}
 
{- Some ideas on the common Builder pattern from the OO world in the context of lenses -}
 
module Main where
 

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{-# LANGUAGE TemplateHaskell #-}
{-# LANGUAGE FunctionalDependencies #-}
{-# LANGUAGE FlexibleInstances #-}
{-# LANGUAGE RankNTypes #-}

{- A little demonstration of HXT and Lenses -}

module Main where

import Control.Arrow