Alexandar May's Blog

Common Binary Tree Problems

Posted on 2025-04-26 In Data Structure and Alogrithm , Binary Tree
Symbols count in article: 12k Reading time ≈ 11 mins.

1. Introduction
2. Case Study
   • Invert Binary Tree
   • Symmetric Tree
   • Maximum Depth of Binary Tree
   • Minimum Depth of Binary Tree
   • Count Complete Tree Nodes
   • Balanced Binary Tree
   • Binary Tree Paths
   • Sum of Left Leaves
   • Find Bottom Left Tree Value

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Design Patterns

Posted on 2025-04-19 In Design Patterns , Software Design
Symbols count in article: 49k Reading time ≈ 45 mins.

1. Introduction
   • Types of Design Patterns
   • Key Characteristics of Design Patterns
2. Creational Patterns
   • Factory Pattern
   • Abstract Factory Pattern
   • Builder Pattern
   • Singleton Pattern
3. Structural Patterns
   • Adapter Pattern
   • Bridge Pattern
   • Composite Pattern
   • Decorator Pattern
   • Facade Pattern
   • Flyweight Pattern
   • Proxy Pattern
4. Behavioral Patterns
   • Observer Pattern
   • Iterator Pattern
   • Command Pattern
   • Strategy Pattern
   • State Pattern
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Stack & Queue

Posted on 2025-04-12 In Data Structure and Alogrithm
Symbols count in article: 7.6k Reading time ≈ 7 mins.

1. Introduction
2. Stack Overview
   • Key Features
   • Applications
3. Queue Overview
   • Key Features
   • Applications
   • Types of Queues
4. Implementing Stack
   • With Array
   • With Linked List
5. Implementing Queue
   • With Array
   • With Linked List
6. Implementing Queue with Two Stacks
7. Implement Stack using just one Queue
8. Summary
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Hash Table

Posted on 2025-04-05 In Data Structure and Alogrithm
Symbols count in article: 11k Reading time ≈ 10 mins.

1. What is Hash Table
   • Core Concepts
   • Common operations of hash table
2. Hash Collision
   • Separate Chaining
   • Open Addressing
3. Hash Alogrithm
   • Goals of hash algorithms
   • Common hash algorithms
4. Practical Examples
   • four sum
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RabbitMQ:One broker to queue them all

Posted on 2025-03-29 In C#/.NET
Symbols count in article: 6.2k Reading time ≈ 6 mins.

1. What is RabbitMQ
   • Core Concepts
2. Environment Setup
   • Docker (Recommended)
3. Managing Users and Permissions
4. Scenario: Producer sends messages, Consumer receives messages
   • Producer Code
   • Consumer Code
   • Run the test
5. Advanced Features: Ensure Reliable Message Delivery
   • Message Persistence
   • Publisher Confirms
   • Manual Consumer Acknowledgment
6. Best Practices
   • Message Format
   • Monitoring
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Dynamic Programming

Posted on 2025-03-22 In Data Structure and Alogrithm
Symbols count in article: 6.5k Reading time ≈ 6 mins.

1. Core Concepts
2. Steps to Solve Problems with Dynamic Programming
   • Define the State
   • Formulate the Transition
   • Initialize the Boundary Conditions
   • Choose an Order
   • Return the Final Result
3. Classic Examples
   • Fibonacci Sequence
   • 0/1 Knapsack Problem
4. Conclusion
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