Programming Tutorials

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

Detect Loop/Cycle in a Linked List

Find the Duplicate Number in an Array Without using Extra Space/Memory

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

Java Program to Count Number of Digits in a Number

Comparable vs Comparator | Java Interview Questions

Interface Segregation Principle | SOLID Principles | Java Code

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

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

Single Responsibility Principle | SOLID Principles

Reverse a String in Java | Reverse String LeetCode Solution

C, C++ Program to Find Second Largest Number in an Array

Find All Anagrams in a String Java | Find All Anagrams in a String LeetCode Java | Sliding Window

Java Program to Find Duplicate Elements in an Array

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

Java Program to Remove Duplicate Elements from Sorted Array

Java Deque | Deque Interface in Java with Example | ArrayDeque

Print Duplicate Elements in Array - Java Code

Java Program to Print Triangle Pattern of Numbers in Reverse Order

Java Program to Print Fibonacci Series upto N Numbers

Java Program to Reverse each Word of a String

Java Program to Print Factorial of a Number using Recursion

Find Sum of Digits of a Number using Recursion in Java

C++ Program to Reverse a number

Permutation in String LeetCode | Permutation in String Java | LeetCode 567

Open Closed Principle | Code Example | SOLID Principles

Reverse a String - Java Code with Explanation

Implement LRU Cache | Implement LRU Cache using HashMap & Doubly Linked List | Programming Tutorials

Insert Delete GetRandom O(1) | LeetCode 380 | Programming Tutorials

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

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

A peaceful evening away from the busy life

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

Search in Rotated Sorted Array | Search an Element in a Sorted and Rotated Array

Convert Integer to Roman Numeral | Integer to Roman LeetCode | Programming Tutorials

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

Print Prime Numbers from 1 to N using Sieve Algorithm : Java Code

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

Find the Difference | LeetCode 389 | Explained 3 Approaches

Find Middle Element of a Linked List : Java Code

Palindrome Number Program in C : Check Whether a Number is Palindrome or Not

Merge Overlapping Intervals | Merge Intervals | Java | InterviewBit Solution

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

First Unique Number (LeetCode 30 Day Challenge) | Programming Tutorials

Find First and Last Position of Element in Sorted Array | Programming Tutorials

Find Duplicate Characters in a String : Java Code

Java Program to Find the Second Highest Number in an Array

Reverse Words in a String | LeetCode 151 | Reverse String Word by Word | Multiple Approaches

Implement a Stack using Array - Java Code with Explanation

Find First and Last index of a Number in an Array - Java Code

Find Second Largest Number in an Array (Multiple Approaches)