Article Categories
- All Categories
-
Data Structure
-
Networking
-
RDBMS
-
Operating System
-
Java
-
MS Excel
-
iOS
-
HTML
-
CSS
-
Android
-
Python
-
C Programming
-
C++
-
C#
-
MongoDB
-
MySQL
-
Javascript
-
PHP
-
Economics & Finance
C++ Articles
Page 348 of 597
Finding sum of alternative elements of the array using C++
The sum of alternate elements has various real-life applications such as signal processing, data compression, pattern recognition, gaming, and financial data analysis. Problem Description In this article, we are going to learn how to find the sum of alternate elements of an array in C++. Alternate elements are present at even or odd indices of the array, depending on how we define them. Example 1 Inputarray = [1, 2, 3, 4, 5] OutputSum_even = 9Sum_odd = 6 Explanation The alternate elements at the even index are 1, 3, 5 (at ...
Read MoreCheck If a Number Is Greater Than Zero in C++
Problem Description In this problem, we are given a number and have to check whether this number is greater than zero. Using the if-else and ternary approach to check if the given number is greater than zero, equal to zero, or less than zero. In this article, we will discuss how we can find if a given number is greater than zero or not in C++. Prerequisite If-else operator: This operator allows the program to execute certain code blocks based on whether a condition is true or false. Syntax of If-else operator if (condition) { // ...
Read MoreFind the duplicate in an array of N+1 integers using C++
Problem Description In this problem, we are given an array that contains all unique elements except one element which is present exactly two times in the array. We have to return that element which is present two times in the array. In this article, we are going to learn how we can find duplicates in an array of N+1 integers in C++. Example Input: array = {1, 3, 4, 2, 2} Output: 2 Explanation: 2 is the only element in the array that occurs two times. Approaches to Find Duplicate Element in an Array ...
Read MoreCalculating the Area of a Triangle Using Heron’s Formula in C++
Problem Description We are given the three sides of a triangle, and we have to calculate the area of the triangle using Heron's formula. In this article, we are going to discuss how we can calculate the area of a triangle using Heron's Formula in C++. Heron's Formula The formula for calculating the semi-perimeter of the triangle is: s = (a + b + c) / 2 Then, apply Heron's formula to calculate the area of the triangle. Heron's formula for calculating the area of the triangle is: Area = √ s * (s - a) * (s - ...
Read MoreC++ Program to Subtract Two Numbers
Problem Description In this problem, we are given two numbers and we have to find the value obtained after subtracting one number from another. In this article, we are going to learn how we can subtract two numbers in C++ using different approaches. Example 1 Input number1 = 8number2 = 12 Output 4 Explanation The subtraction of number2 - number1 i.e. 12 - 8 will result in 4. Example 2 ...
Read MoreHow to Insert Multiple Elements at Given Positions in a Vector?
What is a Vector in C++?A vector is a dynamic array as the size of the vector changes during the program's execution. If we insert more elements in the vector it expands its size and if we remove elements from the vector it shrinks in size. A vector is part of the Standard Template Library (STL). Problem DescriptionIn this problem, we are given a vector and have to insert an element at a certain position. In this article, we are going to learn how to insert multiple positions in a vector in C++ using different approaches. Below are some examples to ...
Read MoreJava Program for Minimum Rotations Required to Get the same String
In this article, we will learn to count the total number of minimum required rotations to get the original string in Java. We can solve the problem by getting the rotations substrings of the original string or concatenating the original string to itself. Problem statement We have given string str of length N. The task is to find the total number of minimum rotations we need to perform to get the original string. Input 1 str = "bcdbcd"; Output 1 3 Explanation − We need to make 3 rotations to get the original string. ...
Read MoreFile Handling through C++ Classes
In this tutorial, we will be discussing a program to understand File Handling through C++ classes. What's File Handling? File handling is an important concept in programming, which allows a program to read from and write to files. C++ has built-in classes and functions for file handling, which is done using file stream classes that are part of the library. The most common file stream classes in C++ are ofstream, ifstream, fstream. ofstream: This class is used for output file streams, where it allows the user to write data to files. ...
Read MoreHow to prevent class inheritance in C++
Here we will see how to prevent inheritance in C++. The concept of preventing inheritance is known as the final class. In Java or C#, we can use final classes. In C++ there are no such direct ways. Here we will see how to simulate the final class in C++. Approach Firstly, we will create one extra class called MakeFinalClass (its default constructor is private). This function is used to solve our purpose. The main Class MyClass can call the constructor of the MakeFinalClass as they are friend classes. One thing ...
Read MoreCount set bits in an integer in C++
We are given an integer number let’s say, num and the task is to first calculate the binary digit of a number and then calculate the total set bits of a number. Set bits in a binary number are represented by 1. Whenever we calculate the binary number of an integer value then it is formed as the combination of 0’s and 1’s. So, the digit 1 is known as a set bit in terms of the computer. Example 1 Input − int number = 50 Output − The count ...
Read More