Approximation of the PI
+==============+
Time: 10-30mins
Difficulty: easy-ish
+==============+
Approximate the value of the number PI with the precision 4 digits (3.141) with the Leibniz formula
https://en.wikipedia.org/wiki/Leibniz_formula_for_%CF%80
+===========================+
Credits: @KlimiCZ

Solutions to @linuxer4fun

Approximation distance of two points in a square
+==============+
Time: 5-20mins
Difficulty: easy
+==============+
Approximate avarage distance between two points in a square of a size
average_points_distance(count, size)
output:
some number
+===========================+
Credits: @KlimiCZ

Solutions to @linuxer4fun

The three Essential rules for being a better developer
+==============+
1) Learn to use Google!
Yes, i mean it! It will teach you
-To find information fast
-Almost everything
-Critical thinking
Also, it will make people much more inclined to help you for problems even Google can't help you with

2) Front and Backend
Both of these areas are important, a good Front-end is important so Customers get to see something. Its a must in modern times. Backends is atleast as important though as it gives functionality to your Fancy UX!

3) Maths
Programming is nothing but a language to the computer. It gets repetitive after a while. Learning maths will
-Help you into CS
-Help you into Machine Learning

Bonus: 4) Learn clean coding. Not just indentation and clean variable names. I mean: CLEAN CODING. Abstract, modular, reusable, parallelisable, generic, understandeable, simple etc

Simple Threading
+============+
Time: 30mins
Language: Any
+============+
Write a program that writes Tello World twice at tte exact same time using threads.

+========+

Refactoring
+=======+
Time: 2h
Difficulty: hard
+=======+
https://pastebin.com/ucKED2Rd

Oh no! A crackpot has tried to improve CLINL but has done a very bad job about it!

Refactor his function!
To do so,
1) Identify the use of the function
2) Rename variables correctly
3) Try to minimize the code
4) Send us your results!

+===============+
#clean #learning #refactoring

Satisfying!
+======+
Time: 20 minutes
Difficulty: quite easy
Language: none, just theory
+======+
Find a proof showing that you can (or cannot) find boolean values for ANY boolean statement, not containing the same variable twice, that make it result to TRUE.

+=======+
#theory #learning #boolean

Solutions to @Linuxer4Fun

!yeH
+=======+
Time: 5minutes
Difficulty: super easy
Language: any
+=======+
Find a way to revert any string

+=======+

#veryeasy #learning #strings

CELEBRATION!
+==========+

Our main group has now 200 Members!
Join it as well : https://www.tg-me.com/joinchat-EXSmZwy0PqOMNWPKxI3shw

Graphics!
+======+
Time: Some
Difficulty: hard
Language: well. you can do SVG in xml, so XML
+======+

As you may have recognized, the Programming Challenges group needs a REAL profile picture.

Your task is to create a Graphic that could be used for that purpose.


The best one sent to @linuxer4fun will be used as the official Programming Challenges profile picture and it's creator will be mentioned in the

Hall of Fame

Tech info!
+=======+
Do you want to Create Machine Learning application in C++? I have created a library for that: https://github.com/Wittmaxi/ZENeural/

It's still in prerelease state, so please give me as much feedback as you can!

Feed It The Text
+===========+
Time: 1h
Difficulty: medium
Language: any
+===========+
Make a function that transforms an ASCII character into a vector of booleans.

+===========+
#machineLearning #learning #thinkOutsideTheBox

Solutions to @maxi_robot

Ouch! They Byte
+============+
Time: 5min
Difficulty: hard
Language: C/C++
+============+
Given four uint8_t, merge them into a uint32_t

+============+

#bytes #learning #training

Solutions to @maxi_robot

Loop Loop Loooooop
+======+
Time: 30mins
Difficulty: tricky
+======+
In your language, find as many ways as possible to execute a loop.

+=======+

#lambdas #goto #loop

Solutions to @maxi_robot

We Need Your Help!
+==============+

So this channel has grown a lot in the recent months.

We want to thank every thinkerer who has joined our group!

Now we certainly aren't perfect!
This is where you can help us become even better than we currently are!

If you have ANY feedback, please tell us in our group!
We would be more than happy to hear how to improve and to discuss proposals for an even better channel!

Group: https://www.tg-me.com/joinchat-EXSmZwy0PqOMNWPKxI3shw

-Maxi

Our Bot!
+=====+

Thanks to @arcobi we now have an official bot that will help moderate the interactive actions amongst this group!

Use it to send us your solutions and to suggest challenges.

+=====+
@maxi_robot

Starting out
+=======+
Time: 2h
Difficulty: easy
+========+
Install linux on your computer and solve a challenge on that linux!

+==============+

Gentoo
+=======+
Time: 2week
Difficulty: hard
+========+
Install Gentoo linux on your computer and solve a challenge on that Gentoo linux!

+==============+

We are number 1rd
+==============+
Time: 10 minutes
Difficulty: easy
+==========+

Implement a program that adds the ordinal suffixes to a number and prints them.

Examples:

5 becomes 5th
2 becomes 2nd
11 becomes 11th
3 becomes 3rd

+==========+

Solutions to @maxi_robot

Soothing Sounds
+==============+
Time: 190 minutes
Difficulty: medium
+==========+
Implement an MP3-Decoder and make it play "Never Gonna give you up".

+==========+

Solutions and Challenge Ideas to @maxi_robot

Windoze
+=====+
Time: 5Days
Difficulty: Hard
+=====+
Make a window manager for XORG-systems!

+=====+

First working solution to be sent to @maxi_robot will be mentioned in the hall of fame!