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https://github.com/magicdude4eva/codewars

Codewars Solutions in Java
https://github.com/magicdude4eva/codewars

codewars codewars-kata codewars-kata-solution codewars-solutions java

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Codewars Solutions in Java

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README 

        
:ninja: My Codewars Java Repository ☕🚀



![CodeWars](https://www.codewars.com/users/magicdude4eva/badges/large)



### Introduction

[Codewars](https://www.codewars.com/r/xfz--w) is an educational online platform for computer programming. On

the platform, users aka "*codewarriors*" try to solve programming challenges known as "*kata*" to

practice programming skills and gain honor points, which represent the level of respect a user has

earned from the community. Each kata is set to a kyū rank, based on its subject area and difficulty.

The harder the kata, the more points. Every new codewarrior is ranked as 8 kyū (Beginner) and can

advance through the ranks by completing kata at or above their rank to reach the final 4th dan (

Master). Kyū indicates the number of degrees away from the master level. This is why they count

downward. Once you reach the master level, we count upward. Enough said... Banzaaaai!



### Disclaimer



- Codewarriors are strongly encouraged not to look at your solutions to Kata until they have completed it themselves or at least took the time to think about their own approaches



* Codewarriors should not submit your solutions as their own



- You will not be accepting contributions of any form to this repo



* Creating a repository like this is discouraged by Codewars



### Vocabulary



- Kata: is an algorithm you have to solve in any programming language you desire



- Kyu: is a digit that determines kata difficulty level as well as the user rank on the platform



### Kata Ranking (kyu)

*source: [Codewars Wiki Honor & Ranks](https://github.com/Codewars/codewars.com/wiki/Honor-&-Ranks) and [Codewars Wiki Kata Ranking](https://github.com/Codewars/codewars.com/wiki/Kata-Ranking)*



Ranks are used to indicate progression and difficulty. Code Warriors complete Kata which are assigned a rank, which in turn earns them a higher rank once they complete enough of them. There are two classes of ranks, Kyu and Dan. You begin with Kyu at level 8 and work your way down to level 1. Then you progress to Dan, where you work your way up from level 1 to level 8.



#### **1 kyu** kata represent a proficient programming level.



At this level kata are similar to 2 kyu but more challenging. They may include concepts such as:

* Advanced AI/machine learning algorithms

* Complex interpreters and compilers

* Complex Mini-programs with multiple feature requirements (such as a complete markdown parser)



#### **2 kyu** kata represent a proficient programming level.



At this level kata require a mature understanding of complex programming concepts - concepts such as:

* Complex AI/machine learning algorithms

* Reverse engineering techniques

* Basic interpreters and compilers

* Basic mini-programs with multiple feature requirements (such as a basic markdown parser)



#### **3 kyu** kata represent a competent programming level.



At this level the kata are similar to 4 kyu but are more challenging. They include tasks that may handle:

* Computer science concepts utilizing advanced algorithms

* Ability to implement advanced requirements in a scalable fashion

* Basic AI/machine learning algorithms

* Detailed usage of advanced concepts such as concurrency, parallelism and cryptography



#### **4 kyu** kata represent a competent programming level.



At this level the kata begin to take some serious thought to complete. They include tasks that may handle:

* Computer science concepts utilizing complex algorithms

* Advanced design patterns

* Understanding intricate business requirements

* Advanced concepts such as concurrency, parallelism, meta programming and cryptography



#### **5 kyu** kata represent a novice programming level.



At this level the kata are similar to 6 kyu but more challenging. It includes:

* Complex language features that require mature OOP/Functional concepts

* Advanced OOP/Functional concepts

* Complex Design Patterns

* Advanced regular expression usage



#### **6 kyu** kata represent a novice programming level.



At this level the kata will start to include more advanced algorithmic challenges and more complex language features. It includes:

* Complex language features (closures, scopes, monads, etc)

* Complex OOP/Functional concepts

* Basic Design Patterns

* Complex Regular Expressions



#### **7 kyu** kata represent a beginner programming level.



At this level the kata will generally challenge users on their core language and API reference knowledge. Tasks such as:

* Iterating arrays and returning a subset of values

* Basic data type manipulations

* Basic functional or object-oriented concepts

* Basic Regular Expressions



#### **8 kyu** kata represent a beginner level.



At this level the kata is only challenging for users new to programming. This includes programming tasks such as:

* Defining a simple function (i.e. hello world)

* Basic variable assignments

* Fixing basic syntax issues

* Trivial algorithms such as basic if/else statements



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