Iterative Tower of Hanoi
Problem statement In the Tower of Hanoi problem you are given three rods (“Source”, “Destination”, “Auxiliary”) and n disks. Initially, all the disks are stacked on the source rod in...
Print Next Greater number of Q queries
Problem statement You are given an integer array of size n and q queries. Your task is to find the next greater element for each query. Each query consists of...
Next Greater Frequency Element
Problem statement Given an array, consisting of n elements, find the next greater frequency element of each element. The next greater frequency element of any element is the first element...
Evaluation of Postfix Expression
Arithmetic Expression An Arithmetic expression is a finite combination of arithmetic operands, operators and brackets. The common way of representing an arithmetic expression is by using infix notation. In infix...
Arithmetic Expression Evaluation
Arithmetic Expression An Arithmetic expression is a finite combination of arithmetic operands, operators and brackets. The common way of representing an arithmetic expression is by using infix notation. In infix...
Next Greater Element
Problem statement Given an array, consisting of n elements, find the next greater element of each element. The next greater element of any element is the first larger element to...
Check for Balanced Parentheses in an Expression
https://www.prepbytes.com/data-structures-in-java Problem statement Given an expression containing only ‘(‘, ’)’, ’{‘, ‘}’, ‘[‘, ‘]’ , check whether the expression is balanced or not. An expression is balanced if each opening...
The Stock Span Problem
Problem statement Given the daily price of a stock for n days, find the stock’s span of the n days. Stock span of the stock’s price of the current day...
C program to Reverse a Linked List
Introduction The linked list is one of the most important concepts and data structures to learn while preparing for interviews. Having a good grasp of Linked Lists can be a...
LinkedList remove() Method in Java
Introduction One of the most crucial data structures to learn while preparing for interviews is the linked list. In a coding interview, having a thorough understanding of Linked Lists might...
ConcurrentLinkedQueue in Java With Examples
Class Declaration [TABS_R id=5250] Here, E is the data type of the elements which will be stored in the queue. ConcurrentLinkedQueue class in java extends AbstractQueue interface and implements Queue...
How To Iterate LinkedList in Java
Introduction One of the most crucial data structures to learn while preparing for interviews is the linked list. In a coding interview, having a thorough understanding of LinkedList might be...
Convert a given Binary Tree To Doubly Linked List | Set 3
Introduction One of the most crucial data structures to learn while preparing for interviews is the linked list. In a coding interview, having a thorough understanding of Linked Lists might...
Deletion in Circular Linked List
Introduction One of the most crucial data structures to learn while preparing for interviews is the linked list. In a coding interview, having a thorough understanding of Linked Lists might...
C program for performing Bubble sort on Linked List
Introduction The linked list is one of the most important concepts and data structures to learn while preparing for interviews. Having a good grasp of Linked Lists can be a...
Delete a node in Doubly Linked List
Introduction The linked list is one of the most important concepts and data structures to learn while preparing for interviews. Having a good grasp of Linked Lists can be a...
Binary search on Linked List
Introduction The linked list is one of the most important concepts and data structures to learn while preparing for interviews. Having a good grasp of Linked Lists can be a...
Multiplication of two polynomials using Linked List
Introduction One of the most crucial data structures to learn while preparing for interviews is the linked list. In a coding interview, having a thorough understanding of Linked Lists might...
Recursive selection sort for singly linked list | Swapping node links
Introduction The linked list is one of the most important concepts and data structures to learn while preparing for interviews. Having a good grasp of Linked Lists can be a...
Merge Sort for Doubly Linked List
Problem statement In this problem, we are given a Doubly Linked List (root node) and are asked to sort it using the merge sort algorithm. For example Input: Output: Problem...