Programming Tutorials

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

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)

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

C, C++ Program to Find Largest of three Numbers

Find Maximum and Minimum Value in Array - Java Code

Find Second Smallest Number in Array without Sorting | Java

Two Sum Problem Java Code | Two Sum LeetCode | Find Pair in Array with Given Sum

Rotate an Array by K Steps (In-Place) |Rotate an Array to the Right by K Steps

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

Find All Duplicates in an Array without using any Extra Space | LeetCode 442

Reverse a Linked List (Iterative Approach) | Programming Tutorials

C Program to Insert an Element in an Array

Reverse an Array in Groups of Given Size

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

Next Greater Element using Stack | Next Greater in Array | Programming Tutorials

Horizontal vs Vertical Scaling | System Design | Programming Tutorials

Longest Substring with K Unique Characters | Programming Tutorials

Segregate 0s and 1s in an Array - Java and C Code Examples

Find Smallest and Largest Number in Array - Java

Singleton Design Pattern | Java | Multiple Examples

Shortest Unsorted Continuous Subarray | Java Code | Programming Tutorials

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

Liskov Substitution Principle | SOLID Principles | Multiple Code Examples

Longest Substring with At Most K Distinct Characters | Programming Tutorials

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

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

Find Next Greater Element for Every Element of an Array

Program to Count Number of Words in a String | Java Code | Programming Tutorials

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

Find Pairs in Array with Given Sum | Programming Tutorials

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

Longest Substring Without Repeating Characters | Sliding Window | Java

Minimum Depth of Binary Tree | Iterative & Recursive Approach

First Non Repeating Character in a Stream

Binary Search | LeetCode 704 | Java | Recursive | Iterative

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

Implement Queue using Two Stacks | Java | Programming Tutorials

Minimum Number of Arrows to Burst Balloons | LeetCode 452