Dijkstra’s Algorithm is one of the most important and widely used algorithms for finding the shortest path in a weighted graph with non-negative edges. In this blog post, we’ll implement Dijkstra’s algorithm using a priority queue (min-heap) in C++. The input will be in the form of an edge list, and the algorithm will return …
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DFS is a powerful graph traversal technique that explores a path as deeply as possible before backtracking. It is one of the most fundamental algorithms used in graph theory, and understanding it opens the door to solving a variety of problems like cycle detection, connected components, and more. Depth First Search (DFS) Traversal on Graph …
In this blog post, we’ll implement BFS traversal on a graph using an adjacency list representation in C++. What is BFS? BFS starts at a given source node (usually node 0) and explores all its neighbors before moving to the next level. It uses a queue to keep track of nodes to visit. Breadth First …
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Depth First Search (DFS) is one of the most commonly used algorithms in graph theory. It’s used to explore all the vertices and edges of a graph systematically, and is a fundamental building block for many advanced problems in computer science. In this blog, we’ll write a simple and clean C++ program to perform DFS …
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This project is a stripped-down version of a contact book, great for beginners. We’ll use a map to store contacts (name → number) and simple file I/O to save and load data. Simple Contact Book in C++ Using map and File I/O What This Program Does Adds new contacts Displays all contacts Saves contacts to …
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In this blog, we will create a basic banking system in C++ using object-oriented programming. This project will help you understand how to model real-world entities using classes and implement common banking operations like deposit, withdrawal, and viewing account details. Building a Simple Banking System in C++ Using OOP Concepts Why Use OOP for a …
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The C++ Standard Template Library (STL) offers ready-made implementations of core data structures like stack, queue, and priority queue. These containers are extremely useful for real-world problem-solving and competitive programming. In this blog, you’ll learn how to use them with simple examples and expected outputs. Stack, Queue, and Priority Queue in C++ STL: Explained with …
The Standard Template Library (STL) is one of the most powerful tools in C++. It provides a collection of ready-to-use classes and functions for data structures and algorithms, making your code efficient and clean. In this blog, we’ll explore the most used STL components: vector, map, set, and pair, with clear examples and outputs. Introduction …
Inheritance is one of the four major pillars of Object-Oriented Programming (OOP) in C++. It allows a class to acquire the properties and behaviors of another class, promoting code reuse and modularity. In this post, we’ll explore the different types of inheritance supported by C++, complete with simple code examples for each. Understanding Inheritance in …
File handling is one of the most essential skills in C++ programming. Whether you’re building applications that need to store user data, process configuration files, or manage logs, understanding how to work with files is crucial. In this comprehensive guide, we’ll explore the fundamentals of file handling in C++ with practical examples. File Handling in …