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Page 1514 of 2109
C++ Program to Implement Set_Union in STL
The Set Union is an operation used to find all elements that are present in either of the sets or in both. In this article, we will learn how to use the set_union algorithm from the Standard Template Library (STL) in C++ to find the union of two sets. What is Set Union? The set union is an arithmetic operation performed between two sets to find all elements that are present in either of the sets or in both. In C++, we have set_union which is a built-in algorithm provided by C++ STL that computes the union of two ...
Read MoreC++ Program to Implement Vector in STL
Vector is a special type of array in C++, which have ability to resize itself automatically during insertion and deletion of elements.. In this article, we will learn how to use the vector container from the Standard Template Library (STL) in C++. What is a Vector? A vector is a container that stores data elements in a dynamic contiguous memory. It is similar to arrays but can change its size dynamically during execution. Meaning, we doesn't need explicitly mention the size of a vector, it will be calculated automatically by counting number of elements in it. Similar to arrays, ...
Read MoreC++ Program to Display Prime Numbers Between Two Intervals
A prime number is a number greater than 1 that has no divisors other than 1 and itself. For example, 2, 3, 5, 7, and 11 are prime numbers. In this article, we'll show you how to write a C++ program to display prime numbers between two intervals. ExampleFor example, given the interval from 0 to 50, we want to print all the prime numbers within this interval. Input: Starting interval: 0 Ending interval: 50 Output: Prime numbers in the interval [0, 50] are: 2 3 5 7 11 13 17 19 23 29 31 37 41 ...
Read MoreC++ program to Find Sum of Natural Numbers using Recursion
Natural numbers are positive numbers starting from 1, such as 1, 2, 3, and so on. Here, we will take a positive number n as input and and then will find the sum of all natural numbers from 1 up to n using recursion using C++ program. Example Input: n = 5 The sum of the first 5 natural numbers is: 1 + 2 + 3 + 4 + 5 = 15 Output: 15 Input: n = 8 The sum of the first 8 natural numbers is: 1 + 2 + 3 + 4 + 5 + 6 ...
Read MoreHow can we return a dictionary from a Python function?
Any object, such as a dictionary, can be the return value of a Python function. To do so, create the dictionary object in the function body, assign it to any variable, and return the dictionary to the function's caller. Data values are stored as key-value pairs in dictionaries. A Python dictionary is a collection that is ordered, changeable, and forbids duplicates. In this article, we will discuss various methods to return a dictionary from a Python function. Using Dictionary Comprehension One line of Python code can create and initialize dictionaries using the simple and memory-efficient way known as Dictionary Comprehension. ...
Read MoreC++ Program to Calculate Average of Numbers Using Arrays
An array stores multiple values of the same data type. To find the average, we add all the numbers and then divide the total by how many numbers there are. In this article, we'll show you how to write a C++ program to calculate the average of numbers using an array. For example, if we have the numbers 40, 80, 10, 75, and 25, their total is 230, and the average is 230 / 5 = 46. Approaches for Calculating Average Using Arrays In C++, we can calculate the average of numbers in an array in two main ...
Read MoreC++ Program to Check Leap Year
A leap year contains one additional day, i.e february 29, to keep the calendar year synchronized with the earth's orbit around the sun. We will write a C++ program that checks whether a given year is a leap year or not. A year that is divisible by 4 is known as a leap year. However, years divisible by 100 are not leap years while those divisible by 400 are. Here is a list of some leap years and non-leap years: ...
Read MoreC++ Program to Generate Multiplication Table
In this article, we will show you how to write a C++ program to generate the multiplication table of a number. A multiplication table shows how a number is multiplied by 1 to 10 and helps define the multiplication operation for that number. Each row displays the result of multiplying the number by values from 1 to 10. For example, the multiplication table of 4 looks like this: 4 * 1 = 4 4 * 2 = 8 4 * 3 = 12 4 * 4 = 16 4 * 5 ...
Read MoreC++ Program to Display Factors of a Number
A factor is a number that divides a given number completely without leaving a remainder. In this article, we'll show you how to display all the factors of a number using different methods in C++. For example, the factors of 12 are 1, 2, 3, 4, 6, and 12. In this article, we will look at two ways to find and display the factors of a number: Basic Iterative Approach Optimized Square Root Approach Factors of a Number Using Iterative (Basic) Approach In this approach, we use loop to go ...
Read MoreC++ Program to Check Whether a Number is Prime or Not
A prime number is a whole number greater than one and the only factors of a prime number should be one and itself. For example, 2, 3, 5, 7, and 11 are prime numbers. Our task is to write a C++ program that checks if a given number is prime or not. We will cover different approaches to solve this problem. We'll cover the following methods for checking whether a number is prime or not: Using a Simple Loop Using the Square Root Method Using ...
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