https://github.com/nlowe/aoc2021

Advent of Code 2021 Solutions
https://github.com/nlowe/aoc2021

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Advent of Code 2021 Solutions

• Host: GitHub
• URL: https://github.com/nlowe/aoc2021
• Owner: nlowe
• License: mit
• Created: 2021-11-07T06:21:22.000Z (over 4 years ago)
• Default Branch: master
• Last Pushed: 2022-12-04T06:34:40.000Z (over 3 years ago)
• Last Synced: 2024-06-20T13:40:47.138Z (almost 2 years ago)
• Language: Go
• Size: 199 KB
• Stars: 9
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Advent of Code 2021

[![](https://github.com/nlowe/aoc2021/workflows/CI/badge.svg)](https://github.com/nlowe/aoc2021/actions) [![Coverage Status](https://coveralls.io/repos/github/nlowe/aoc2021/badge.svg?branch=master)](https://coveralls.io/github/nlowe/aoc2021?branch=master) [![Go Report Card](https://goreportcard.com/badge/github.com/nlowe/aoc2021)](https://goreportcard.com/report/github.com/nlowe/aoc2021) [![License](https://img.shields.io/badge/license-MIT-brightgreen)](./LICENSE)

Solutions for the 2021 Advent of Code

## Building

This project makes use of Go 1.17.

```bash

go mod download

go test ./...

```

## Running the Solutions

To run a solution, use the problem name followed by the path to an input file.

For example, to run problem 2a:

```bash

$ go run main.go 1 a

Answer: 1532

Took 1.5586ms

```

## Adding New Solutions

A generator program is included that makes templates for each day, automatically

downloading challenge input and updating the root command to add new subcommands

for each problem. Running `go generate` from the repo root will generate the

following for each day that is currently accessible:

* `challenge/day/import.go`: A "glue" file combining commands for both of the day's problems to simplify wiring up subcommands

* `challenge/day/a.go`: The main problem implementation, containing a cobra command `A` and the implementation `func a(*challenge.Input) int`

* `challenge/day/a_test.go`: A basic test template

* `challenge/day/b.go`: The main problem implementation, containing a cobra command `B` and the implementation `func b(*challenge.Input) int`

* `challenge/day/b_test.go`: A basic test template

* `challenge/day/input.txt`: The challenge input

Additionally, `challenge/cmd/cmd.go` will be regenerated to import and add all

subcommands.

This requires `goimports` be available on your `$PATH`. Additionally, you must be

logged into https://adventofcode.com in Chrome so the generator can use your session

cookie to download challenge input.

Existing solutions and challenge inputs will be skipped instead of regenerated.

## License

These solutions are licensed under the MIT License.

See [LICENSE](./LICENSE) for details.