Running solutions:
For example Day 3 solutions
advent-of-code-2020> npm run ts-node "./day3/day3.ts"
Linux:
For example day 4 solutions
advent-of-code-2020$ npm run solve:linux --day=4
Windows:
For example Day 5 solutions
advent-of-code-2020> npm run solve:windows --day=5
or
advent-of-code-2020> npm run solve --day=5