safadômetro

Polyglot implementations of "safadeza" calculus.

Table of Contents

• The Problem
• Motivation
• Contributing
• Status
• Importance
• License

The Problem

Sometimes, you want to know how safad(o/a) - a Brazilian Portuguese word for naughty - someone is. A very popular Brazilian musician desbribes himself as being 99% an angelical and perfect person; but the other 1% is naughty - as you can see in the lyrics.

A very clever professor from a state university in Brazil proposed a way o calculing how safado some is based on his/her date of birth.

The magical formula needs:

• A sum function which takes an int a returns the sum of it with all its previous positive integers, e.g. sum(5) = 5 + 4 + 3 + 2 + 1.

• A safadeza function which is given by:

  safadeza = sum(month) + (year / 100) * (50 - day)

• An angel function which is given by:

  angel = 100 - safadeza

The last two functions MUST return a float

So this repo is for writing code that shows others how safado they are.

I look forward to seeing what you come up with c:

Motivation

The programming question which quotes Wesley Safadão and turned to be a hit on the web.

It all started when a professor from the Quixadá campus of the Federal University of Ceará - Universidade Federal do Ceará (UFC) - Jefferson de Carvalho called everyone's attention by using a hit of the sertanejo and forró music to teach imperative programming logic to his students.

He was inspired by the song Aquele 1%, which is a success from the duo Marcos & Belutti featuring a very popular Brazilian musician, Wesley Safadão, to write his logical challenge.

If you'd like to find out more content about this funny story, there are lots of good resources on the web about it.

Contributing

Basic Requirements

• You MUST be listening to the music while coding.
• If you have to stop listening, close the editor - your time is over!
• Please, don' use tabs. Tabs are from Satan. Use spaces. - actually, just follow the basic styleguide.

Adding a New Implementation

1. Just think of your own interpretation of the problem.
2. Check if anyone has suggested this before here.
3. Fork this project!
4. Create a new folder with the name of the language you've used in your solution, e.g. javascript/.
5. If the language you want to implement already has an implemention, make version-* in the folder!
6. Put the implementation and the example in separated files.
7. Tick the language - with - [x] in GitHub Flavored Markdown - in which you've implemented here.
8. Commit your changes: git commit -m 'Add JavaScript version'.
9. Push to the branch: git push origin master.
10. Submit a pull request :)

If you'd like to contribute with a language in which the algorithm has already been implemented - but you have a new/special/different/whatever way of making -, you can make it! Just create a new folder inside the folder of the language, e.g. javascript/browser, javascript/node, javascript/react etc.

Adding a New Language

1. Check if anyone has suggested this before here.
2. Fork this project!
3. Add the language to the languages tracking file - don't forget to obey alphabetical order.
4. Commit your changes: git commit -m 'Add JavaScript to listed languages'.
5. Push to the branch: git push origin master.
6. Submit a pull request :)

Status

You can check a list of languages in which the problem's been implemented - or should've been - here.

Importance

This project may seem useless, but, amazingly, it is not.

In about two days it achieved something interesting: a deterministic algorithm said to be simple which when implemented in 40+ languages, tells us a lot! E.g.

• It shows us a different programming logic from the imperative one we are probably used to think, such as declarative.

• It allows us to think in different paradigms from the ones we are probably used to think, e.g. functional and logical ones.

• It allows us to study and analyze new implementations in new langs, for example: a taste of Smalltalk's pure Object Orientation - hooray for Allan Kay, Adele Goldberg et al! - or a bit of functional programming in Haskell - and its beautiful type system, monads etc. - or the different logic that a language based on Horn Clauses such as Prolog reveals.

• Or, amazingly, the underground languages that we don't know - after all, getting to know a DSL written in JS, which has a different approach to prototype-based OO or a declarative DSL written in TypeScript and LiveScript which has a type system inspired by Idris and aims printers is not something you do every day.

So the lesson is: that kind of initiative shows us that in modern times not only with FizzBuzz-alike implementations you can learn programming logic/languages/ paradigms.

License

safadômetro is distributed under the MIT License, available in this repository. All contributions are assumed to be also licensed under the MIT License.

Wesley Oliveira da Silva, also known as Wesley Safadão, is a Brazilian singer, songwriter, producer, and businessman. The safadômetro project does not have any rights over anything related to the him; images, logos, and everything related to the him have All Rights Reserved to Wesley Safadão & Banda Garota Safada.