Page Code

Welcome to Page Code!
Your ultimate destination for mastering programming concepts and sharpening your coding skills. 🎯

On this channel, we dive deep into:
✅ Algorithms & Data Structures – From basics to advanced, with clear explanations and practical implementations.
✅ System Design – Learn how to architect scalable and efficient systems.
✅ Object-Oriented Programming (OOP) – Explained in depth with real-world examples.
✅ Coding Playlists – Backtracking, Dynamic Programming, Graphs, Greedy Algorithms, and more!
✅ Techniques & Tricks – Simplified tutorials to ace your coding interviews and projects.

Whether you're a beginner or a seasoned programmer, Page Code has something for everyone.
🔔 Subscribe now and start leveling up your coding journey!

Find Employees with the Same Salary Using SQL | SQL Tutorial
Find Employees with the Same Salary Using SQL | SQL Tutorial
Find Departments with More Than 2 Employees Using GROUP BY & HAVING
Find Departments with More Than 2 Employees Using GROUP BY & HAVING
Get the Count of Employees in Each Department | Interview Question
Get the Count of Employees in Each Department | Interview Question
Get Maximum Salary for Each Department | Interview Question
Get Maximum Salary for Each Department | Interview Question
Delete Duplicate Records but Keep First Occurrence | Multiple Approaches
Delete Duplicate Records but Keep First Occurrence | Multiple Approaches
Find Duplicate Records in a Table | Multiple Approaches
Find Duplicate Records in a Table | Multiple Approaches
Find the Nth Highest Salary | Multiple Approaches Explained
Find the Nth Highest Salary | Multiple Approaches Explained
2nd Highest Salary Problem Solved (4 Approaches) SQL Coding Interview
2nd Highest Salary Problem Solved (4 Approaches) SQL Coding Interview
Runtime Polymorphism in C++ | Function Overriding & Virtual Functions Explained with Examples
Runtime Polymorphism in C++ | Function Overriding & Virtual Functions Explained with Examples
Operator Overloading in C++ | Definition, Key Points & Coding Examples
Operator Overloading in C++ | Definition, Key Points & Coding Examples
Polymorphism in C++ | Compile Time vs Runtime | Method Overloading Explained with Examples
Polymorphism in C++ | Compile Time vs Runtime | Method Overloading Explained with Examples
Abstraction in C++ | Pure Virtual Functions, Abstract Classes & Interfaces Explained
Abstraction in C++ | Pure Virtual Functions, Abstract Classes & Interfaces Explained
Friend Keyword in C++ | friend Function & Class Explained with Coding + Interview Q&A
Friend Keyword in C++ | friend Function & Class Explained with Coding + Interview Q&A
Static Keyword in C++ | Static Variables & Functions Explained with Code
Static Keyword in C++ | Static Variables & Functions Explained with Code
Inheritance in C++ | Types, Virtual Inheritance, Diamond Problem & Interview Questions
Inheritance in C++ | Types, Virtual Inheritance, Diamond Problem & Interview Questions
OOPs in C++ Explained with Code | Constructor, Destructor, Deep & Shallow Copy
OOPs in C++ Explained with Code | Constructor, Destructor, Deep & Shallow Copy
Encapsulation in C++ | Access Modifiers, Getters & Setters Explained | OOPs Concepts + Interview Q&A
Encapsulation in C++ | Access Modifiers, Getters & Setters Explained | OOPs Concepts + Interview Q&A
✅ OOPs in C++ | Classes & Objects | Member Variables & Functions with Hands‑On Examples
✅ OOPs in C++ | Classes & Objects | Member Variables & Functions with Hands‑On Examples
Insert Delete GetRandom in O(1) | HashMap + Vector | Leetcode 380 | C++
Insert Delete GetRandom in O(1) | HashMap + Vector | Leetcode 380 | C++
Group Anagrams | HashMap + Sorting | Leetcode 49 | C++ Explained
Group Anagrams | HashMap + Sorting | Leetcode 49 | C++ Explained
Unordered Map in C++ | STL Unordered_map Tutorial | Insert, Find, Erase
Unordered Map in C++ | STL Unordered_map Tutorial | Insert, Find, Erase
Design HashSet | Implement HashSet from Scratch | C++ | Leetcode 705
Design HashSet | Implement HashSet from Scratch | C++ | Leetcode 705
Design HashMap | Implement HashMap from Scratch | C++ | Leetcode 706
Design HashMap | Implement HashMap from Scratch | C++ | Leetcode 706
Hashing Introduction | Data Structures Basics | HashMap & HashSet Explained
Hashing Introduction | Data Structures Basics | HashMap & HashSet Explained
Sliding Window Maximum | Deque Optimized Approach | Leetcode 239 | C++
Sliding Window Maximum | Deque Optimized Approach | Leetcode 239 | C++
Min Stack | Track Minimum in O(1) | Leetcode | C++ Solution Explained
Min Stack | Track Minimum in O(1) | Leetcode | C++ Solution Explained
Implement Queue using Stacks | Two Stack Approaches | Leetcode | C++
Implement Queue using Stacks | Two Stack Approaches | Leetcode | C++
Implement Stack using Queues | Two Queues Approach | Leetcode | C++
Implement Stack using Queues | Two Queues Approach | Leetcode | C++
Trapping Rain Water II | Min Heap + BFS | C++ | Leetcode Solution Explained
Trapping Rain Water II | Min Heap + BFS | C++ | Leetcode Solution Explained
Reorganize String | Greedy + Max Heap | C++ | Leetcode Solution Explained
Reorganize String | Greedy + Max Heap | C++ | Leetcode Solution Explained