https://github.com/petertseng/adventofcode-hs-2017

Solutions to https://adventofcode.com/2017 (all but day 21, unlikely to add day 21 due to lack of interest)
https://github.com/petertseng/adventofcode-hs-2017

advent-of-code advent-of-code-2017 haskell

Last synced: 18 days ago
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Solutions to https://adventofcode.com/2017 (all but day 21, unlikely to add day 21 due to lack of interest)

• Host: GitHub
• URL: https://github.com/petertseng/adventofcode-hs-2017
• Owner: petertseng
• License: apache-2.0
• Created: 2019-12-06T22:46:48.000Z (about 5 years ago)
• Default Branch: master
• Last Pushed: 2024-12-04T12:08:32.000Z (about 2 months ago)
• Last Synced: 2024-12-04T13:20:48.175Z (about 2 months ago)
• Topics: advent-of-code, advent-of-code-2017, haskell
• Language: Haskell
• Homepage: https://adventofcode.com/2017
• Size: 29.3 KB
• Stars: 0
• Watchers: 3
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# Advent of Code

These are my solutions to http://adventofcode.com

All solutions are written in Haskell.

[![Build Status](https://travis-ci.org/petertseng/adventofcode-hs-2017.svg?branch=master)](https://travis-ci.org/petertseng/adventofcode-hs-2017)

## Input

In general, all solutions can be invoked in both of the following ways:

* Without command-line arguments, takes input on standard input.

* With 1+ command-line arguments, reads input from the first, which must be the path to an input file.

  Arguments beyond the first are ignored.

Some may additionally support other ways:

None yet.

## Highlights

None yet.

### Packages

As of 2019, building Haskell packages on my development machine is (mostly) broken, so I was forced to implement the following days without packages, when I otherwise would have preferred to use packages:

None yet.

### Closing Thoughts

Even when knot-tying is not directly possible, passing back a function that allows the function to pick up where it left off is a very interesting pattern.

Immutable array updates copy the entire array, so don't do that.

Mutable array updates or IntMap, depending on what's appropriate.