Programming Tutorials

Symmetric Tree (Mirror Image of itself or not) | Iterative & Recursive Solution

Singleton Design Pattern | Java | Multiple Examples

Triplet Sum in Array | Find a Triplet with the Given Sum in an Array | Programming Tutorials

How to Create Immutable Class in Java | Immutable Classes & Objects

Monotonic Array | Check If Given Array is Monotonic | Programming Tutorials

Sliding Window Maximum | LeetCode | Priority Queue | Deque | Java Code

Primitive Vs Reference Data Type | Difference between Primitive and Non-Primitive Data Types in Java

Interface Segregation Principle | SOLID Principles | Java Code

Shortest Unsorted Continuous Subarray | Java Code | Programming Tutorials

Liskov Substitution Principle | SOLID Principles | Multiple Code Examples

Remove Duplicates from Sorted Array In-Place (without using extra space)

Squares of a Sorted Array | Sort Array After Converting Elements to their Squares

Cyclically Rotate an Array by One | Right Rotate an Array by One Index | Java

Wrapper Classes in Java | Primitive Data Types | Autoboxing and Unboxing - Java Code

Open Closed Principle | Code Example | SOLID Principles

Comparable vs Comparator | Java Interview Questions

Insert Interval | Insert in sorted and non-overlapping interval array | Programming Tutorials

Single Responsibility Principle | SOLID Principles

Horizontal vs Vertical Scaling | System Design | Programming Tutorials

Longest Substring with K Unique Characters | Programming Tutorials

Longest Substring with At Most K Distinct Characters | Programming Tutorials

Java Deque | Deque Interface in Java with Example | ArrayDeque

Doubly Linked List | Singly Vs Doubly Linked List | Time Complexity

A peaceful evening away from the busy life

Smallest Subarray with Sum Greater than or Equal to K (Target) | Sliding Window

Implement Queue using Two Stacks | Java | Programming Tutorials

Next Greater Element in Circular Array | Next Greater Element II | Programming Tutorials

Thank you for 10K subscribers !!! | Programming Tutorials

Binary Tree Inorder Traversal with and without Recursion | LeetCode 94 | Programming Tutorials

Rotting Oranges | Minimum Time Required to Rot All Oranges | Java | Programming Tutorials

Binary Tree Preorder Traversal (Iterative & Recursive Approach) | Programming Tutorials

Binary Tree Right Side View | Print Right View of a Binary Tree | Programming Tutorials

Search a 2d Matrix | Search in a Row wise and Column wise Sorted Matrix | Binary Search

Search in Rotated Sorted Array II | Search in Rotated Sorted Array with Duplicates

Validate Binary Search Tree | Check If a Binary Tree is BST or Not | Java

Valid Palindrome II | Remove a Character From a String to Make it a Palindrome

Range Sum of BST | LeetCode 938

Populating Next Right Pointers in Each Node | LeetCode 116

Add Two Numbers II | LeetCode 445 | Add Two Numbers Represented by Linked Lists

Add Two Numbers Solution | Add Two Numbers as Lists

Recover Binary Search Tree | LeetCode 99 | Programming Tutorials

First Non Repeating Character in a Stream

Minimum Depth of Binary Tree | Iterative & Recursive Approach

Minimum Number of Arrows to Burst Balloons | LeetCode 452

Serialize and Deserialize BST | Serialize and Deserialize Binary Search Tree | LeetCode 449

Binary Search | LeetCode 704 | Java | Recursive | Iterative

Longest Substring Without Repeating Characters | Sliding Window | Java

Find the Difference | LeetCode 389 | Explained 3 Approaches

Majority Element II | LeetCode 229 | Majority Element (Greater than N/3 Times)

Majority Element in Array | Find the Majority Element that occurs more than N/2 Times