Advent of Code 2020

My Haskell solutions for https://adventofcode.com/2020

Can read input from stdin, a file or fetched from adventofcode.com/DAY/input (saved into a file, to avoid spamming the server). Can choose day from cmdargs.

Days completed

• Day 1
• Day 2
• Day 3
• Day 4
• Day 5
• Day 6
• Day 7
• Day 8
• Day 9
• Day 10
• Day 11
• Day 12
• Day 13
• Day 14
• Day 15
• Day 16
• Day 17
• Day 18
• Day 19
• Day 20
• Day 21
• Day 22
• Day 23
• Day 24
• Day 25

Usage

Usage: <interactive> [--day DAY] [--stdin | --file FILENAME]
  Run a advent of code challenge. Default is to run the last implemented
  challenge and fetch the corresponding input

Available options:
  --day DAY                Run challenge for the provided day
  --stdin                  Read from stdin
  --file FILENAME          Read from input file
  -h,--help                Show this help text

Build

stack build

Run

From terminal : stack exec aoc2020 -- [cmdargs]

Interactive : stack ghci and then :main [cmdargs]