Stream5, C++ (gcc)

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//g++  7.4.0

///////////////////////////////////////////////////////////////////////
//Stream5
//this code is created by Rezaul Hoque on July 21,2022;
//contact:jewelmrh@yahoo.com;Dhaka,Bangladesh;https://rezaulhoque.wordpress.com,https://hoquestake.blogspot.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>
//stream manipulator
std::ostream& l(std::ostream& os)
{
  return (os<<"\n");
}

void fill(char c)
{
std::cout.width(25);
std::cout.fill(c);
std::cout<<l;
}

int main()
{

fill('#');
char c;
while((c=std::cin.get())!=EOF)
{
 if(c=='~')
   std::cin.putback(':');
else
   std::cout.put(c);
}
std::cout<<l;

char s[25]="Another Stream Example";
std::cout.write(s,23);

std::cout<<l;

fill('#');
return 0;
}

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Compilation time: 1.77 sec, absolute running time: 0.2 sec, cpu time: 0.02 sec, memory peak: 5 Mb, absolute service time: 2,02 sec