Advent of Code 2020

Solutions to Advent of Code 2020 challenges.

Install

Requirements: Node.js 14

Clone this repo and run npm install.

Run

npm start <day>

This will execute the script with the default input set. Different input files can be placed in the assets/data/ directory and specified as an additional argument:

npm start <day> <filename>

TypeScript files can be executed directly using ts-node if desired:

npx ts-node src/day-<day>/ <path to input file>

Golfed versions of solutions can be executed using the following command:

npm run golf <day>

Development guidelines

General

• First argument must be input file path
• Assume that the input file will have a trailing newline character

Normal solutions

• Store in src/ folder under the appropriate day, named index.ts

Golfed solutions

• Store in src/ folder under the appropriate day, named golfed.cjs
• When there is a choice between a semicolon, comma, or newline character, use a newline character (\n)
• Imports (using require or import) are restricted to built-in Node.js modules