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C++ Articles
Page 11 of 597
C++ Program to Implement Trie
A Trie, also known as a prefix tree, is used to store and search for large sets of strings. In this section we will discuss all about Trie data structure, its operations, and how to implement it in C++. Trie Data Structure A Trie is a data structure similar to a tree that is used to store a dynamic set of strings. The root node represents an empty string, and each edge represents a character. The path from the root to a node represents a prefix of a string stored in the Trie. The image below show how a ...
Read MoreHow to write a short literal in C++?
In the following article, we will learn about short literals in C++. In both C and C++, different data types have different literals. A literal is a fixed constant value, which is assigned to the variables of different data types. For example, here is a list of different data types with their literals. Datatypes Literals ...
Read MoreWhat are local variables in C++?
The variables, which are declared inside a function, block or method are known as local variables in C++. Their scope is limited to that function or block and can be accessed and used only within the area or scope they are defined. You cannot access or use them outside their scope. This is mainly used to prevent conflicts with other variables in other parts of the program and to efficiently manage memory. Key Characteristics of Local Variables Scope Limited : These variables are declared inside block or scope (usually {}) and are only visible and used ...
Read MoreHow to write the first C++ program?
C++ is a high level programming language that is used to develop applications, work with operating systems, and much more. It is an extension of the C language, which combines both procedural programming (available in C) and object oriented programming. In this article, we will learn step by step the procedure of writing our first C++ program. Prerequist For this, make sure that your computer consists of the following two. C++ Compiler Text Editor or IDE Get a C++ Compiler It is a system that translates the source code (written ...
Read MoreC++ Programming Language Features
C++, also said to be a middle-level language, as it is a combination of both high-level features like abstraction with low-level language features like memory manipulation capabilities of assembly. It is a superset of C, as it compromises both C with object-oriented, therefore any valid C program will also be valid to C++ program.Top Features of C++ Programming Language C++ runs on a variety of platforms, such as Windows, Mac OS, and the various versions of UNIX. In this following article we will discuss some of the features of C++ that make it stand out among other programming languages: 1. ...
Read MoreC++ Rule Of Three.
The rule of three in C++ states that, if a class in C++ has any one (or more) of the following, then it should define all three. Destructor Copy Constructor Copy Assignment Constructor These three are special member functions of class and are responsible for managing resources such as dynamic memory, file handles, sockets, etc. And if one of them is defined explicitly, means that class is managing those resources manually (like memory using new/delete), and if we fail to define others then it can lead to ...
Read MoreAddress of a function in C or C++
In C and C++, every function is stored in the computer's memory, and each function has a memory address just like all other variables. In this article, our task is to see how we can access the address of a function and display it in both C and C++. Accessing Address of a Function To access the address of a function, we simply use its name without parentheses. When we print a function name with parentheses like hello(), we're calling the function. But if we print just hello, it gives us the memory address where the function is stored. ...
Read MoreAdam Number in C++
The Adam number is a number such that the square of the given number 'n' is the reverse of the square of the reverse of that number 'n'. In this article, our task is to write a program that can check whether the given number is an Adam number or not. Here is an example to check whether 12 is an Adam number or not: Input: num = 12 Output: 12 is an Adam number Explanation: num = 12 , square of num = ...
Read MoreFind maximum sum of triplets in an array such than i < j < k and a[i] < a[j] < a[k] in C++
In this article, we have an array of positive integers of size n. Our task is to calculate the maximum sum of triplet ( ai + aj + ak ) such that 0 sum = 12 3 6 10 => sum = 19 3 4 10 => sum = 17 4 5 10 => sum = 19 2 5 10 => sum = 17 Maximum sum = 19 Finding maximum sum of triplets in an array such than i < j < k and a[i] < a[j] < a[k]Here are the approaches ...
Read MoreSum of the Series 1 + x/1 + x^2/2 + x^3/3 + .. + x^n/n in C++
In this article, we are given a mathematical series. Our task is to write a program to find the sum of the series 1 + x/1 + x^2/2 + x^3/3 + .. + x^n/n. This can also be represented as: $$ 1+\displaystyle\sum\limits_{k=1}^n \left(\frac{x^k}{k}\right) $$ This series without starting 1 is known as the Taylor Expansion Series for -ln(1-x) where ln is the natural log. Example Here is an example of calculating the value of the given series: Input: x = 7, n = 4 Output: 747.08 ...
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