# Advent of Code 2020 in Gleam

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![Stars](https://img.shields.io/badge/🌟%20stars-50/50-orange)

|  Day   | Problem Name                                                    | Part 1 | Part 2 | Practiced Concepts                                                         |
| :----: | --------------------------------------------------------------- | :----: | :----: | -------------------------------------------------------------------------- |
| **01** | [Report Repair](https://adventofcode.com/2020/day/1)            | :star: | :star: | stdlib, file reading, `\|>`, `gleam/io`                                    |
| **02** | [Password Philosophy](https://adventofcode.com/2020/day/2)      | :star: | :star: | parsing, higher-order functions, structures                                |
| **03** | [Toboggan Trajectory](https://adventofcode.com/2020/day/3)      | :star: | :star: | 2D vectors, uniform motion, grids                                          |
| **04** | [Passport Processing](https://adventofcode.com/2020/day/4)      | :star: | :star: | parsing                                                                    |
| **05** | [Binary Boarding](https://adventofcode.com/2020/day/5)          | :star: | :star: | binary numbers, `gleam/iterator`, `gleam/set`                              |
| **06** | [Custom Customs](https://adventofcode.com/2020/day/6)           | :star: | :star: | type aliases, parsing, `gleam/list`, `gleam/set`                           |
| **07** | [Handy Haversacks](https://adventofcode.com/2020/day/7)         | :star: | :star: | parsing, graphs, recursion, `gleam/dict`, `gleam/iterator`                 |
| **08** | [Handheld Halting](https://adventofcode.com/2020/day/8)         | :star: | :star: | ADTs, parsing, pattern matching, interpreters, `gleam/option`              |
| **09** | [Encoding Error](https://adventofcode.com/2020/day/9)           | :star: | :star: | `gleam/list`, `gleam/pair`, two-sum                                        |
| **10** | [Adapter Array](https://adventofcode.com/2020/day/10)           | :star: | :star: | dynamic programming, memoization, OTP, actors, `use <-`                    |
| **11** | [Seating System](https://adventofcode.com/2020/day/11)          | :star: | :star: | grids, `gleam/iterator`, pattern matching, 2D vectors, ADTs                |
| **12** | [Rain Risk](https://adventofcode.com/2020/day/12)               | :star: | :star: | ADTs, state machines, pattern matching, interpreters                       |
| **13** | [Shuttle Search](https://adventofcode.com/2020/day/13)          | :star: | :star: | scheduling, LCD, GCD, `gleam/iterator`                                     |
| **14** | [Docking Data](https://adventofcode.com/2020/day/14)            | :star: | :star: | ADTs, state machines, parsing, pattern matching, interpreters, graphs, DFS |
| **15** | [Rambunctious Recitation](https://adventofcode.com/2020/day/15) | :star: | :star: | `gleam/dict`, `gleam/iterator`, simulation                                 |
| **16** | [Ticket Translation](https://adventofcode.com/2020/day/16)      | :star: | :star: | parsing, ranges, ADTs, recursion                                           |
| **17** | [Conway Cubes](https://adventofcode.com/2020/day/17)            | :star: | :star: | `gleam/set`, 3D vectors, 4D vectors, grids, recursion                      |
| **18** | [Operation Order](https://adventofcode.com/2020/day/18)         | :star: | :star: | ADTs, ASTs, recursive-descent parsers                                      |
| **19** | [Monster Messages](https://adventofcode.com/2020/day/19)        | :star: | :star: | parsing, ADTs, CSP, references                                             |
| **20** | [Jurassic Jigsaw](https://adventofcode.com/2020/day/20)         | :star: | :star: | grids, 2D vectors, transforms, CSP, `gleam/dict`                           |
| **21** | [Allergen Assessment](https://adventofcode.com/2020/day/21)     | :star: | :star: | parsing, CSP, recursion                                                    |
| **22** | [Crab Combat](https://adventofcode.com/2020/day/22)             | :star: | :star: | simulation, recursion, `gleam/option`, `gleam/order`, `use <-`             |
| **23** | [Crab Cups](https://adventofcode.com/2020/day/23)               | :star: | :star: | cyclic buffers, recursion, `gleam/dict`, `gleam/iterator`                  |
| **24** | [Lobby Layout](https://adventofcode.com/2020/day/24)            | :star: | :star: | parsing, hexagonal coordinates, simulation, game of life                   |
| **25** | [Combo Breaker](https://adventofcode.com/2020/day/25)           | :star: | :star: | modular arithmetic, key exchange                                           |