Video: Dictionaries, Hash Tables and Sets (Bulgarian)

Overview of dictionaries, hash tables and sets. The video is recorded in 2013 in Bulgarian.

Topics covered:

  • Dictionaries
  • Hash Tables
    • Hashing
    • Collisions
  • Dictionary<TKey, TValue> Class
  • Sets: HashSet<T> and SortedSet<T>

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Video: Trees and Tree Traversal Algorithms (Bulgarian)

Overview of trees and tree traversal algorithms. The video is recorded in 2013 in Bulgarian.

Topics covered:

  • Tree-like Data Structures
  • Trees and Related Terminology
  • Implementing Trees
  • Traversing Trees
    • DFS and BFS Traversals
  • Balanced Search Trees
    • Balanced Trees in .NET

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Video: Linear Data Structures (Bulgarian)

Overview of linear data structures such as lists, linked lists, stacks and queues. The video is recorded in 2015 in Bulgarian.

Topics covered:

  • Lists
    • Static and Linked Implementation
    • List<T> and LinkedList<T>
  • Stacks
    • Static and Linked Implementation
    • The Stack<T> Class
  • Queues
    • Circular and Linked Implementation
    • The Queue<T> Class

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Video: Entity Framework Performance (in Bulgarian)

Topics covered:

  • SQL Profilers
  • The N+1 Query Problem
  • Incorrect Use of ToList()
  • Incorrect use of SELECT *
  • Deleting objects faster with native SQL

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Video: Introduction to Data Structures, Algorithms and Complexity (Bulgarian)

Overview of data structures and basic algorithms, computational complexity and asymptotic notation. Video recorded in 2015 in Bulgarian.

Topics covered:

  • Data Structures Overview
    • Linear Structures, Trees, Hash Tables, Others
  • Algorithms Overview
  • Algorithms Complexity
    • Time and Memory Complexity
    • Mean, Average and Worst Case
    • Asymptotic Notation O(g)

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