https://github.com/jovannypcg/advent-of-code-2019
Solutions to Advent of Code 2019
https://github.com/jovannypcg/advent-of-code-2019
Last synced: 2 months ago
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Solutions to Advent of Code 2019
- Host: GitHub
- URL: https://github.com/jovannypcg/advent-of-code-2019
- Owner: jovannypcg
- Created: 2020-06-26T04:13:32.000Z (almost 5 years ago)
- Default Branch: master
- Last Pushed: 2020-06-28T22:47:20.000Z (almost 5 years ago)
- Last Synced: 2025-02-13T06:31:14.766Z (4 months ago)
- Language: Clojure
- Size: 13.7 KB
- Stars: 0
- Watchers: 2
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
# Advent of Code 2019
Solutions to problems from Advent of Code 2019.
- [Prerequisites](#prerequisites)
* [SDKMan](#sdkman)
* [Installing Java 8 Using SDKMan](#installing-java-8-using-sdkman)
* [Installing Clojure](#installing-clojure)
- [Usage](#usage)
* [Start a REPL](#start-a-repl)
* [Playing around](#playing-around)
- [Testing](#testing)
## Prerequisites
* Java 8
* Clojure 1.10.1
* Leiningen 2.9.3 (optional)
### SDKMan
Java 8 can be installed via [SDKMan](https://sdkman.io/install), which is a version manager for technologies related to the Java Virtual Machine (similar to `rbenv` for Ruby or `pyenv` for Python).
### Installing Java 8 Using SDKMan
```shell
$ sdk install java 8.0.242.hs-adpt
$ export JAVA_HOME=~/.sdkman/candidates/java/current
```
### Installing Clojure
Visit the [official web site](https://clojure.org/guides/getting_started) to get the instructions according to your operating system.
### Installing Leiningen
Visit the [official web site](https://leiningen.org/#install) to get the instructions according to your operating system.
## Usage
### Leiningen
#### Start a REPL
```shell
$ cd /path/to/repo
$ lein repl
```
#### Playing around
Once the repl has started, change the namespace for the one you are interested in.
For example, to play around with the `day-1.spacecraft` namespace, run:
```shell
advent-of-code=> (in-ns 'day-1.spacecraft)
#object[clojure.lang.Namespace 0x7725cd39 "day-1.spacecraft"]
day-1.spacecraft=> (fuel-required module-masses)
4959709
```
#### Testing
```shell
$ lein test
```
### Clojure CLI
#### Start a REPL
```shell
$ cd /path/to/repo
$ clj
Clojure 1.10.1
user=>
```
#### Playing around
Once the repl has started, load the `advent_of_code.clj` file, that requires the namespaces
of all days. It is like a facade to those namespaces to avoid loading each file. Then change the current
namespace for the one you are interested in.
For example, to play around with the `day-1.spacecraft` namespace, run:
```shell
user=> (load-file "src/main/clojure/advent_of_code.clj")
nil
user=> (in-ns 'day-1.spacecraft)
#object[clojure.lang.Namespace 0x7725cd39 "day-1.spacecraft"]
day-1.spacecraft=> (fuel-required module-masses)
4959709
```
#### Testing
```shell
$ clj -Atest
```