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In this problem, we are given a binary tree. Our task is to write a program to find the maximum depth or height of the given tree.Let’s take an example to understand the problem, The height of the tree is 3.To find the maximum height of a tree, we will check the heights of its left and right subtree and add one to the maximum of both. This is a recursive process that will continue this the last node is of the tree is found and one is added progressively to find the height of the sub-trees.Above example solved using ... Read More
Here, we are given an array or a string of characters. We will create a program to reverse the elements of an array or string.Let’s take an example to understand the problem, Inputarray = {2, 5, 7, 1, 9}Output{9, 1, 7, 5, 2}Inputstring = “Hello!”Output!0lleHTo create a program, we will loop through the elements of the array/string(both work in the same way). Taking one variable for start and one of end. And swap both elements. Increment the start variable and decrement the end variable. The swapping will continue till start variable’s value is less than end variable.The program can be ... Read More
Before Java 9, we have to search in google to find out particular packages, class, interface, and method information. Since Java 9, Javadoc includes search options in the API documentation itself, and the output is HTML5 compliant.In the below example, we have created the "JavaDocTest.java" file in the "C:/JAVA" folder.Examplepublic class JavaDocTest { /** * Default method to be run to print * Tutorialspoint * @param args command-line arguments */ public static void main(String args[]) { System.out.println("Tutorialspoint"); } }The documentation generated by Java 9 ... Read More
Implementation of FizzBuzz involves printing numbers from 1 to 100. If the numbers are multiples of 3 then Fizz is printed. If they are multiples of 5, then Buzz is printed and if they are multiples of both 3 and 5 then FizzBuzz is printed.A program that demonstrates the implementation of FizzBuzz is given as follows.Example Live Demousing System; namespace FizzBuzzDemo { public class example { static void Main(string[] args) { for (int i = 1; i
This article poses a common advisory and security measure note for the Zoom users to protect themself from presumptive hacking attempt, as this application is quite vulnerable to breach. Zoom is quite trending and its popularity mysteriously skyrocket in last 3 month in terms of downloads (20 CR) despite having other plethora of amazing video conferencing application. Zoom does not have the End-to-end encryption facility like whatsapp and WebEx and attackers can potentially gain control to the ZOOM without its user’s cognizance by mean of a secret tools called zWarDial.However, I am not going to discuss the usage of this ... Read More
This article is intended to demonstrate, how to bypass the anti-virus detection using the Veil framework, as it is a collection of tools designed for use during penetration testing. It currently consists of the following modules −Veil-Evasion − a tool to generate antivirus-evading payloads using a variety of techniques and languagesVeil-Catapult − a psexec-style payload delivery system that integrates Veil-EvasionVeil-PowerView − a powershell tool to gain network situational awareness on Windows domainsVeil-Pillage − a modular post-exploitation framework that integrates Veil-EvasionRequirementsTo install the Veil- Framework, you are supposed to configure the latest Python packages into your machine.How to InstallThe important point ... Read More
In Java 9, few static methods: stream(), or(), and ifPresentOrElse() have added to Optional class. The introduction of an Optional class solves the null pointer exception.Optional.or() method returns an Optional describing the value if a value is present, otherwise returns an Optional produced by the supplying function. Syntaxpublic Optional or(Supplier
In this article we will be discussing how we can quickly merge two sorted arrays using std::merge() function in C++ STL.So, before solving the problem let's first discuss the std::merge() in C++ STL.What is std::merge()?std::merge() function is an inbuilt function in C++ STL, which is defined in the header file. merge() is used to merge two sorted ranges or series. This function combines two sorted ranges to make one single sorted range. All the elements are compared using less than operator (
In this problem, we are given a number. Our task is to find the XOR of the count of 0s and 1s in the binary representation of the number.Let’s take an example to understand the problem, Inputn = 9Output0Explanationbinary = 1001 Count of 0s = 2 Count of 1s = 2 2 ^ 2 = 0To solve this problem, we will first convert the number of its binary equivalent and then iterating over each bit of the number, count 0s, and 1s and then find XOR of the count of 0s and count of 1s.Program to illustrate the above solution, ... Read More
Here, we have to create a strcmp (string compare) function that compares two string but ignores cases of the characters of the string. The function will return -1 if string1 < string2, 0 if string1 = string2, 1 if string1 > string2.Let’s take an example to understand the problem, Inputstring1 = “Hello” , string2 = “hello”Output0To create our own strcmp function that ignores cases while comparing the strings. We will iterate through all characters of both the strings, if characters at ith index are the same i.e. string1[i] == string2[i], continue. If string1[i] > string2[i], return 1. If string1[i] < ... Read More