Core Concepts

Basic implementation of core Computer Science algorithms and data structures written in C# and packaged as .NET Core assembly. Hence, the choice to use core :-)

This project was primarily influenced by the following StackOverflow question and popular answer, my desire to create a cross-platform library and more importantly, help anyone interested in learning the fundamentals.

Goals

• Provide implementations to standard algorithms/data structures
• Include unit tests to verify functionality
• Write clean and straightforward code with helpful comments
• No dependency on third-party libraries

Implementations

• Algorithms

  • Sorting
    • Bubble Sort implementation and tests
    • Insertion Sort implementation and tests
    • Selection Sort implementation and tests
    • Merge Sort implementation and tests
    • Quick Sort implementation and tests
  • Searching
    • Binary Search implementation and tests
    • Depth First Search implementation and test
    • Breadth First Search implementation and test

• Data structures

  • Linked List implementation and tests
  • Doubly Linked List implementation and tests
  • Queue implementation and tests
  • Stack implementation and tests
  • Graph
    • Undirected (implemented using Adjacency List) and tests
  • Min Heap (coming soon!)
  • Max Heap (coming soon!)

Notes

• The goal of this project is to implement solutions, not leverage LINQ or make use of latest-and-greatest syntactic sugar provided by .NET Core to reduce code.

• It should also be noted, I have not provided a solution to 'RegEx match open tags except XHTML self-contained tags'. Use an XML parser instead :-)

Sample

• Binary Search

int[] array = new int[] { 1, 2, 15, 35, 46, 78, 100 };
int index = BinarySearch.Search(array, 35);
// Will return 3

• Bubble Sort

int[] unsortedArray = new[] { 300, 5, 1, 8, 100, 2, 10 };
BubbleSort.Sort(unsortedArray);
// Will produce [1, 2, 5, 8, 10, 100, 300]

• Insertion Sort

int[] unsortedArray = new int[] { 38, 27, 43, 3, 9, 82, 10 };
InsertionSort.Sort(unsortedArray);
// Will produce [3, 9, 10, 27, 38, 43, 82]

• Selection Sort

int[] unsortedArray = new int[] { 300, 5, 1, 8, 100, 2, 10 };
SelectionSort.Sort(unsortedArray);
// Will produce [1, 2, 5, 8, 10, 100, 300]

• Stack

using Core = CoreConcepts.DataStructures.Linear;

Core.Stack<int> stack = new Core.Stack<int>();

int itemsToPush = 5;
for (int i = 1; i <= itemsToPush; i++)
{
    stack.Push(i);
}

for (int i = itemsToPush; i > 0; i--)
{
    int value = stack.Pop();
}