cpp-strings Archives - GeeksforGeeks

C++ Program to Check String is Containing Only Digits

Last Updated: 27 January 2023

Prerequisite: Strings in C++The string is the collection of characters or text in a string variable, surrounded by double quotes. One questi ...read more

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Convert char* to std::string in C++

Last Updated: 16 October 2024

Strings are generally represented as an instance of std::string class in C++. But the language also supports the older C-Style representatio ...read more

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Convert std::string to LPCWSTR in C++

Last Updated: 20 October 2022

C++ provides us a facility using which one can represent a sequence of characters as an object of a class. This class is std::string. Intern ...read more

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string::npos in C++ with Examples

Last Updated: 21 September 2023

What is string::npos?It is a constant static member value with the highest possible value for an element of type size_t.It actually means un ...read more

C++ program to check whether a String is a Pangram or not

Last Updated: 17 March 2023

Given string str, the task is to check whether a string is pangram or not using in C++.A string is a Pangram if the string contains all the ...read more

String hashing using Polynomial rolling hash function

Last Updated: 28 April 2025

Given a string str of length n, your task is to find its hash value using polynomial rolling hash function.Note: If two strings are equal, t ...read more

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std::string::rfind in C++ with Examples

Last Updated: 26 May 2022

The std::string::rfind is a string class member function that is used to search the last occurrence of any character in the string. If the c ...read more

std::string::find_last_of in C++ with Examples

Last Updated: 20 March 2023

The std::string::find_last_of is a string class member function which is used to find the index of last occurrence of any characters in a st ...read more

Program to reverse words in a given string in C++

Last Updated: 06 July 2023

Given a sentence in the form of string str, the task is to reverse each word of the given sentence in C++.Examples:Input: str = "the sky is ...read more

Frequency of each character in a String using unordered_map in C++

Last Updated: 26 October 2020

Given a string str, the task is to find the frequency of each character of a string using an unordered_map in C++ STL.Examples:Input: str = ...read more

Strings in C++ and How to Create them?

Last Updated: 11 March 2023

Strings in C++ are used to store text or sequences of characters. In C++ strings can be stored in one of the two following ways:C-style stri...read more

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Convert character array to string in C++

Last Updated: 11 January 2025

This article shows how to convert a character array to a string in C++.The std::string in c++ has a lot of inbuilt functions which makes imp ...read more

Check whether two strings are equivalent or not according to given condition

Last Updated: 14 August 2023

Given two strings A and B of equal size. Two strings are equivalent either of the following conditions hold true:1) They both are equal. Or, ...read more

Sub-string that contains all lowercase alphabets after performing the given operation

Last Updated: 07 May 2025

Given a string str containing lower case alphabets and character '?'. The task is to check if it is possible to make strgood or not.A string ...read more

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String after processing backspace characters

Last Updated: 07 September 2022

Given a string S containing letters and '#'. The '#" represents a backspace. The task is to print the new string without '#'.Examples:Input ...read more