Today we are going to write a program to find the inverse of matrix C++, so let’s start with the what is the inverse of a matrix. Inverse of a Matrix: For a square matrix A, the inverse is written A-1. When A is multiplied by A-1 the result is the identity matrix I. Non-square […]

What is CAPTCHA? A CAPTCHA (Completely Automated Public Turing test to tell Computers and Humans Apart) is a test to determine whether the user is human or not.   So, the task is to generate unique CAPTCHA every time and to tell whether the user is human or not by asking user to enter the […]

Difference between Method Overloading vs Method overriding: Overloading can occur without inheritance. Overriding of functions occurs when one class is inherited from another class.   Overloaded functions must differ in function signature i.e. either number of parameters or type of parameters should differ. In overriding, function signatures must be same.   Overloaded functions are in same […]

Red Black-Tree (RB-Tree): A red-black tree is a binary search tree with one extra attribute for each node: the colour, which is either red or black. It has following properties: Every node is either red or black. Every leaf (NULL) is black. If a node is red, then both its children are black. Every simple […]