c++ Concepts
In this article, we will discuss how to divide vector by a scalar quantity in C++. Example, Input Vector = { 4 , 4 , 20 , 80 } Scalar = 4 Output Vector = { 1 , 1 , 5 , 20 } // dividing each element by the scalar For this tutorial, assume …
Write a program to design a simple calculator using class and object in C++. The program is very simple. We are going to make a class named Calculator to perform simple arithmetic operations like addition, subtraction, multiplication, and division. Program to design a simple calculator using a Class The Calculator class contains 2 private variables …
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ProblemGiven an unsorted array of size n. Write a program to remove all the duplicates from the array. Example, Input { 6, 6, 7, 6, 9, 1, 9, 0, 0, 1, 4, 5, 1 } Output { 6, 7, 9, 1, 0, 4, 5} The problem can be solved in many ways. We will discuss …
In this post, we will discuss how we can sort a vector of structure ( or any object ). The best way to sort a vector of structure is to use std:sort(). It is part of algorithm.h library. Suppose you have a structure as follows You need to sort the vector of Student in ascending …
Linear Search program using templates is very similar to a non-generic version ( without templates ). If you don’t know what linear search is or how it works then refer to this. Before anything, you must be aware of why we use templates. With the help of templates, we can use the same linear search …
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In this post, we will discuss code to implement queue using class templates in c++. Queue Operations push(x): push() function adds an element ‘x’ at the end of the queue. front(): front() function returns the first (or front) element of the queue. pop(): pop() function removes the first element from the queue. empty(): empty() function …
In this post, we will discuss how to read/write string vector to a file in C++. The simplest way to write a vector to a file is to store each element of the vector on a separate line. The above code writes each string of the vector to file text.txt. We insert “endl” at the …
In this post, we will discuss how to declare string with given size. Syntax to declare string of given size string s(N, X); The above line of code declares a string of size N filled with character X. For example, Output
Returning a 2D vector is exactly the same as returning a primitive datatype in C++. The syntax of a function that returns the 2D vector is The above function returns a copy of V. Example, Output Note: This method is used only if the size of the 2D vector is small. The function creates and …
In this post, we will discuss binary search algorithm implementation using function templates in C++. If you don’t know how binary search works, then read Binary Search Algorithm. Program of Binary Search Using Templates Output Program of Binary Search Using Templates (recursive) Output ReadFind all subsets of an arrayProgram to count prime numbers in given …