![Алгоритмы на Kotlin](/assets/algo_logo.png)

# Kotlin Algorithms and Design Patterns

This repository lists the most common algorithms, data structures, and design patterns written in the Kotlin programming language.

All code is divided into separate packages:

1. <code>sorting</code> - sorting algorithms
2. <code>search</code> - search algorithms
3. <code>structures</code> - data structure (lists, arrays, stack, queue, binary trees, e.t.c)
4. <code>design-patterns</code> - design patterns
5. <code>other</code> - other algorithms (Levenshtein distance, Knut Morris Pratt algorithm, e.t.c)

For each code file, tests are made, which are located in the <code>test/kotlin</code> directory

Also, whenever possible, I add *javadoc* for each class, method, and file

Content:

1. package <code>design_patterns</code> - design patterns
    * [Abstract Factory](/src/main/kotlin/design_patterns/Abstract%20Factory.kt)
    * [Adapter](/src/main/kotlin/design_patterns/Adapter.kt)
    * [Bridge](/src/main/kotlin/design_patterns/Bridge.kt)
    * [Builder](/src/main/kotlin/design_patterns/Builder.kt)
    * [Chain Of Responsibilities](/src/main/kotlin/design_patterns/Сhain%20Of%20Responsibilities.kt)
    * [Command](/src/main/kotlin/design_patterns/Command.kt)
    * [Composite](/src/main/kotlin/design_patterns/Composite.kt)
    * [Decorator](/src/main/kotlin/design_patterns/Decorator.kt)
    * [Facade](/src/main/kotlin/design_patterns/Facade.kt)
    * [Factory Method](/src/main/kotlin/design_patterns/Factory%20Method.kt)
    * [Flyweight](/src/main/kotlin/design_patterns/Flyweight.kt)
    * [Interpreter](/src/main/kotlin/design_patterns/Interpreter.kt)
    * [Iterator](/src/main/kotlin/design_patterns/Iterator.kt)
    * [Mediator](/src/main/kotlin/design_patterns/Mediator.kt)
    * [Memento](/src/main/kotlin/design_patterns/Memento.kt)
    * [Observer](/src/main/kotlin/design_patterns/Observer.kt)
    * [Prototype](/src/main/kotlin/design_patterns/Prototype.kt)
    * [Proxy](/src/main/kotlin/design_patterns/Proxy.kt)
    * [Singleton](/src/main/kotlin/design_patterns/Singleton.kt)
    * [State](/src/main/kotlin/design_patterns/State.kt)
    * [Strategy](/src/main/kotlin/design_patterns/Strategy.kt)
    * [Template Method](/src/main/kotlin/design_patterns/Template%20Method.kt)
    * [Visitor](/src/main/kotlin/design_patterns/Visitor.kt)

2. package <code>structures</code> - data structure
    * [Binary tree](/src/main/kotlin/structures/BinaryTree.kt)
    * [Stack 1st implementation](/src/main/kotlin/structures/Stack1.kt)
    * [Stack 2nd implementation](/src/main/kotlin/structures/Stack2.kt)
    * [Queue](/src/main/kotlin/structures/Queue.kt)
    * [Undirected Graph](/src/main/kotlin/structures/Graph.kt)
    * [Directed Graph with weights](/src/main/kotlin/structures/GraphWithWeights.kt)
    * [Matrix](/src/main/kotlin/structures/Matrix.kt)
    * [Dynamic Array](/src/main/kotlin/structures/DynamicArray.kt)
    * [Single linked list](/src/main/kotlin/structures/SingleLinkedList.kt)
    * [Double linked list](/src/main/kotlin/structures/DoubleLinkedList.kt)
    * [Min-heap](/src/main/kotlin/structures/MinHeap.kt)
    * [Max-heap](/src/main/kotlin/structures/MaxHeap.kt)

3. package <code>sorting</code> - sorting algorithms
    * [Bubble sort](/src/main/kotlin/sorting/BubbleSort.kt)
    * [Insertion sort](/src/main/kotlin/sorting/InsertionSort.kt)
    * [Merge sort](/src/main/kotlin/sorting/MergeSort.kt)
    * [Quick sort](/src/main/kotlin/sorting/QuickSort.kt)
    * [Selection sort](/src/main/kotlin/sorting/SelectionSort.kt)
    * [Radix sort](/src/main/kotlin/sorting/RadixSort.kt)
    * [Tim sort](/src/main/kotlin/sorting/TimSort.kt)
    * [Count sort](/src/main/kotlin/sorting/CountingSort.kt)

4. package <code>search</code> - search algorithms
    * [Binary search](/src/main/kotlin/search/BinarySearch.kt)
    * [Linear search](/src/main/kotlin/search/LinearSearch.kt)

5. package <code>other</code> - other algorithms
    * [Finite state machine](/src/main/kotlin/other/BinaryDigitsCounter.kt)
    * [Euclid's algorithm](/src/main/kotlin/other/EuclidAlgorithm.kt)
    * [Factorial](/src/main/kotlin/other/Factorial.kt)
    * [Factorial from Google Guava library](/src/main/kotlin/other/FactorialAdvanced.kt)
    * [Factorial of BigInteger's with cache](/src/main/kotlin/other/FactorialBigWithCache.kt)
    * [Factorial with cache](/src/main/kotlin/other/FactorialWithCache.kt)
    * [FizzBuzz](/src/main/kotlin/other/FizzBuzz.kt)
    * [Knut Morris Pratt's Algorithm for finding a substring](/src/main/kotlin/other/KnuthMorrisPrattAlgorithm.kt)
    * [Levenshtein distance](/src/main/kotlin/other/LevenshteinLengthAlgorithm.kt)
    * [Finding the maximum](/src/main/kotlin/other/MaxAlgorithm.kt)
    * [Finding the minimum](/src/main/kotlin/other/MinAlgorithm.kt)
    * [Palindrome](/src/main/kotlin/other/PalindromeAlgorithm.kt)
    * [Parenthesis checking algorithm](/src/main/kotlin/other/ParenthesisCheckAlgorithm.kt)
    * [Reverse Array](/src/main/kotlin/other/ReverseArrayAlgorithm.kt)
    * [Sieve of Eratosthenes](/src/main/kotlin/other/SieveOfEratosthenesAlgorithm.kt)
    * [The square root of a number](/src/main/kotlin/other/Sqrt.kt)
    * [StringEqualsHash](/src/main/kotlin/other/StringEqualsHashAlgorithm.kt)
    * [Swap algorithm](/src/main/kotlin/other/SwapAlgorithm.kt)

## Your wishes and ideas

If you are interested in my repository or you have ideas on how to improve it or add something write: [Telegram](https://t.me/dmitry_tsyvtsyn), [Gmail](mailto:dmitry.kind.2@gmail.com)

## License

      MIT License

      Copyright (c) 2023 Dmitry Tsyvtsyn

      Permission is hereby granted, free of charge, to any person obtaining a copy
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