Stream2, C++ (gcc)

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//g++  7.4.0
//Stream2
//this code is created by Rezaul Hoque on July 19,2022;contact: jewelmrh@yahoo.com
//note: codes shared by Rezaul Hoque on rextester are not for sale; they are created and shared to facilitate the algorithm learning process; many like Hoque use this platform to practice programming ;Rezaul hopes his contribution helps others to fine tune their learning;

#include <fstream>
#include <iostream>
#include <iomanip>
#include <string>
#include <strstream>

std::ostream& l(std::ostream& os)
{
  return (os<<"\n");
}
int main()
{

std::cout.width(25);
std::cout.fill('>');
std::cout<<l;
std::cout.put('J').put('u').put('l').put(' y').put(' ').put('1').put('9').put(',').put('2').put('0').put('2').put('2').put('\n');
const double hr=23;
std::cout.setf(std::ios::showpoint);
std::cout<<"\nTime: "<<hr<<" hours"<<l;

std::

std::istrstream  s("12.50 2 50");

double price;
double quantity;
double charge;
std::cout.setf(std::ios::fixed,std::ios::floatfield);
std::cout<<std::setprecision(2);
if(s>>price>>quantity>>charge)
  std::cout<<"price: "<<price<<l<<" quantity: "<<quantity<<l<<" charge: "<<charge<<l<<" total cost: "<<price*quantity+charge<<l;

std::cout<<l;
std::cout.width(25);
std::cout.fill('<');
std::cout<<"\n";
return 0;
}

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Compilation time: 0.83 sec, absolute running time: 0.19 sec, cpu time: 0.02 sec, memory peak: 5 Mb, absolute service time: 1,08 sec