The line sweep algorithm is based on the idea of using a vertical imaginary line that moves in the rightward direction upon the occurrences of certain events defined by the current problem at hand. The line sweep algorithm is used to solve problems such as closest pair, line segment intersections, the union of rectangles, convex hull, Manhattan ...
This article explains the concept of isomorphism in graph data structures. A pair of given graphs are said to be isomorphic graphs if they are structurally equivalent. It means there exists a mapping(bijection) between the vertices of the two graphs. Using this mapping, one graph can be converted into the other by replacing its vertices ...
Problem Statement You are given a set of N jobs, where each job is having a deadline and a profit associated with it. You can only earn a profit if you complete the job within its given deadline. You can perform the job either before the deadline or strictly on the deadline, not after that. Rules: Input Format: The jobs will be ...
Sort a stack involves the task of arranging the elements within a stack in a specific order, either ascending or descending, using only a limited set of stack operations like push, pop, and peek. The goal is to achieve this sorting without utilizing extra data structures, such as arrays or lists. The challenge lies in ...
When you want to send files or store the files on a computer, if the size is very huge we generally compress it and store it. One way of compressing these files is using Huffman Coding which is a greedy-based algorithm that is also known as variable-length coding or lossless data compression technique. Introduction to ...
A data structure is a way of storing, organizing, and efficiently maintaining data concerning both time and space. Data structures can be of two types, static and dynamic data structures. Static data structures are the ones in which the size of the structure is predefined and fixed. On the other hand, dynamic data structures are the ones whose size ...
Data Structures are of two types: primitive and non primitive data structures. Refer to the below image for the types of the data structures The first type of data structure i.e. primitive data structure is considered as the fundamental data structure and it allows storing the values of only one data type but non-primitive data structures are considered as ...
Graphs, as non-linear data structures comprising nodes and edges, represent relationships between entities. Three classic graph representation in data structure include Adjacency Matrix, Adjacency List, and Incidence Matrix. While Adjacency Matrix offers fast edge retrieval but consumes more space, Adjacency List is space-efficient but slower for edge retrieval. Incidence Matrix is rarely used due to its inefficient space utilization and slower ...
An infix expression is one that we use regularly. A single letter or operator followed by one infix string and another infix string makes up an infix expression such as A, A + B, and (A + B) + (C – D). Therefore, there are operators between operands in this. If the operator appears in an expression before the ...
Problem Statement Given a number n. Find the sum of the first n even natural numbers. Example Input : 4 Output : 20 Explaination The Sum of the first 4 natural numbers is 20 because 2+4+6+8 = 20 Constraints 1 <= N <= 10000 Approach 1: Naive Approach (Using a for Loop) This is the Brute-Force method to find the sum ...