StringStream in C++ – Hacker Rank Solution | HackerRank Programming Solutions | HackerRank C++ Solutions

Hello Programmers/Coders, Today we are going to share solutions of Programming problems of HackerRank of Programming Language C++ . At Each Problem with Successful submission with all Test Cases Passed, you will get an score or marks. And after solving maximum problems, you will be getting stars. This will highlight you profile to the recruiters.

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Introduction To C++

C++ is a general-purpose programming language that was developed as an enhancement of the C language to include object-oriented paradigm. It is an imperative and a compiled language. 

C++ is a middle-level language rendering it the advantage of programming low-level (drivers, kernels) and even higher-level applications (games, GUI, desktop apps etc.). The basic syntax and code structure of both C and C++ are the same. 

C++ programming language was developed in 1980 by Bjarne Stroustrup at bell laboratories of AT&T (American Telephone & Telegraph), located in U.S.A. Bjarne Stroustrup is known as the founder of C++ language.

StringStream in C++


stringstream is a stream class to operate on strings. It basically implements input/output operations on memory (string) based streams. stringstream can be helpful in different type of parsing. The following operators/functions are commonly used here

  • Operator >> Extracts formatted data.
  • Operator << Inserts formatted data.
  • Method str() Gets the contents of underlying string device object.
  • Method str(string) Sets the contents of underlying string device object.

Its header file is sstream.

One common use of this class is to parse comma-separated integers from a string (e.g., “23,4,56”).

stringstream ss("23,4,56");
char ch;
int a, b, c;
ss >> a >> ch >> b >> ch >> c;  // a = 23, b = 4, c = 56

You have to complete the function vector parseInts(string str)str will be a string consisting of comma-separated integers, and you have to return a vector of int representing the integers.Note If you want to know how to push elements in a vector, solve the first problem in the STL chapter.6

Input Format :

The first and only line consists of n integers separated by commas.

Output Format :

Print the integers after parsing it.P.S.: I/O will be automatically handled. You need to complete the function only.

Sample Input :


Sample Output :

StringStream in C++ – Hacker Rank Solution
#include <sstream>
#include <vector>
#include <iostream>
using namespace std;

vector<int> parseInts(string str) 
	// Complete this function
    stringstream ss(str);
    vector<int> result;
    char ch;
    int tmp;

    while (ss >> tmp) 
        ss >> ch;

    return result;

int main() 
    string str;
    cin >> str;
    vector<int> integers = parseInts(str);
    for(int i = 0; i < integers.size(); i++) 
        cout << integers[i] << "\n";
    return 0;

49 thoughts on “StringStream in C++ – Hacker Rank Solution | HackerRank Programming Solutions | HackerRank C++ Solutions”

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