ansonmiu0214/advent-of-code-2021

Multilingual solutions to Advent of Code 2021

(Multilingual) Advent of Code 2021

Advent of Code is a great opportunity to brush up on existing languages and learn some new ones!

Usage - Directory Structure - Extending Language Support

---

Usage

usage: ./run_solution.sh LANGUAGE -d DAY -input INPUT -p PART

arguments:
                LANGUAGE    programming language
  -d, --day     DAY         the day of a problem, [1,25]
  -i, --input   INPUT       type of input file, {sample,test}
  -p, --part    PART        the part of a problem, {1,2}

Examples

Run the Golang solution for part 2 of day 1's problem, using the test input

$ ./run_solution.sh golang --day 1 --input test --part 2

Run the Python solution for part 1 of day 2's problem, using the sample input

$ ./run_solution.sh python --day 2 --input sample --part 1

Directory Structure

File / Directory	Description
data/sample/	Input files for the sample cases
data/test/	Input files for the user-specific test cases
run_solution.sh	Multilingual solution dispatcher

Extending Language Support

Suppose you would like to write solutions in a new language, say bash.

1. Create a solutions directory for the new language.

   $ mkdir bash

2. Add a solution to the new solutions directory.

   $ echo "echo Hello, world!" > bash/day1.sh

3. Implement an adapter in run_solutions.sh for the new language.

   # file: ./run_solution.sh
   
   function pythonSolution  {... }
   function goSolution { ... }
   
   function bashSolution {
       SOLUTION_DIR=$1
       DAY=$2
       INPUT_FILE=$3
       PART=$4
   
       SOLUTION="$SOLUTION_DIR/day$DAY.sh"
       if [[ ! -f $SOLUTION ]]; then
           error "Cannot find solution: $SOLUTION"
       fi
   
       set -x
       bash $SOLUTION
   }

4. Register the new adapter in run_solution.sh.

   # file: ./run_solution.sh
   
   # Select the adapter function based on the user-specified language.
   case "$LANGUAGE" in
       python)
           RUN_SOLUTION=pythonSolution
           ;;
       golang)
           RUN_SOLUTION=golangSolution
           ;;
       #++++++++++++++++++++++++++++
       bash)
           RUN_SOLUTION=bashSolution
           ;;
       #++++++++++++++++++++++++++++
       *)
           error "Unsupported language: $LANGUAGE"
           ;;
   esac