Fork, Commit, Merge - Medium Issue (Haskell)

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Assessment

Difficulty
2/5
Estimated time
1-3 hours
Newbie friendliness
72/100
Issue type
Feature
Clarity
Mostly clear
Activity status
Active
Tech stack
haskell
Domain
tooling

Research direction

The work is a new file, Fibonacci.hs, in tasks/haskell/medium, with fibonacci :: Integer -> [Integer] and a main that reads a limit from stdin. Check the example first: input 10 gives [0,1,1,2,3,5,8], which reads as a value limit, not a count, so confirm that before coding. Compile with ghc -o fibonacci Fibonacci.hs and run ./fibonacci to match the sample output.

Written by the indexing model from the issue text.

Description

first-contributor first-contributors good first issue haskell help wanted medium up-for-grabs

Fork, Commit, Merge - Medium Issue (Haskell)

Implement a Haskell Program to Calculate Fibonacci Numbers

Note: You don't have ask permission to start solving the issue or get assigned, since these issues are supposed to be always open for new contributors. The actions-user bot will reset the file back to previous state for the next contributor after your commit is merged. So you can just simply start working with the issue right away!

Open the tasks/haskell/medium directory from the root of your project.

Then open a file called Fibonacci.hs.

Description:

The goal of this task is to create a simple Haskell program that calculates and prints Fibonacci numbers. The Fibonacci sequence is a series of numbers where each number is the sum of the two preceding ones, usually starting with 0 and 1.

Your Haskell program should have the following features:

  • A function to calculate Fibonacci numbers up to a specified limit.
  • Print the Fibonacci numbers up to the limit.
Task Details:
  • Implement a function fibonacci :: Integer -> [Integer] that calculates Fibonacci numbers up to the specified limit. You can use recursion or an iterative approach.
  • Implement a function main that takes user input for the limit and prints the Fibonacci numbers.
Example Output:
Enter the limit for Fibonacci numbers:
10
Fibonacci numbers:
[0,1,1,2,3,5,8]
How to run:

First, make sure you are in the correct directory:

cd tasks/haskell/medium

Compile the program:

ghc -o fibonacci Fibonacci.hs

After the program is compiled, you can run:

./fibonacci

If the program works as expected, you are ready to make a pull request!

To work with this issue, you need to have Haskell installed to your local machine.
Check out README.md for more instructions of installing Haskell and how to make a pull request.

Feel free to ask any questions here if you have some problems!

Also, kindly give this project a star to enhance its visibility for new developers!
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Getting set up

First steps

  1. Read the whole issue, then the project's contributing guide.
  2. Comment on the issue to say you are picking it up — it saves two people doing the same work.
  3. Fork the repository and make your change on a branch.
  4. Open a pull request that references the issue number.

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