HalumResto, C++ (gcc)

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//g++  7.4.0

//////////////////////////////////////////////////////////////////////////////
//HalumResto:Upgraded Stream9
//this code is created by Rezaul Hoque on August 03,2022;
//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");
}
namespace Pat {
void fill(char c)
{
std::cout.width(40);
std::cout.fill(c);
std::cout<<l;
}
void left(int n,char c){
std::cout.setf(std::ios::left);
std::cout.fill(c);
std::cout.width(n);
}
void right(int n,char c){
std::cout.setf(std::ios::right);
std::cout.fill(c);
std::cout.width(n);
}
}
namespace Carte{
void lunch()
{
int a=10,b=10,c=10,d=40;
Pat::fill('*');
Pat::left(25,' ');
std::cout<<"\tMenu"<<"Price"<<l;

Pat::left(25,'.');
std::cout<<"\tRice(1½ plates)"<<"Tk"<<a*1.5<<l;

Pat::left(25,'.');
std::cout<<"\tLentil Soup(1 cup)"<<"Tk"<<c*1<<l;

Pat::left(25,'.');
std::cout<<"\tMalabar Spinach(1 plate)"<<"Tk"<<b*1<<l;

Pat::left(25,'.');
std::cout<<"\tRita fish(1 plate)"<<"Tk"<<d*1<<l;

Pat::right(25,' ');
std::cout<<"\tTotal   "<<"Tk"<<(a*1.5+b*1+c*1+d*1)<<l;

Pat::fill('*');

}

void dinner()
{
int a=10,b=20,c=40;
Pat::fill('*');

Pat::left(25,' ');
std::cout<<"\tMenu"<<"Price"<<l;

Pat::left(25,'.');
std::cout<<"\tNaan(2 pieces)"<<"TK "<<a*2<<l;

Pat::left(25,'.');
std::cout<<"\tLabra(1 plate)"<<"TK "<<b*1<<l;

Pat::left(25,'.');
std::cout<<"\tDal Makhani(1 plate)"<<"TK "<<c*1<<l;

Pat::left(25,' ');
std::cout<<"\tTotal   "<<"TK "<<(a*2+b*1+c*1)<<l;

Pat::fill('*');

}

void breakfast()
{
int a=5,b=50,c=15;
Pat::fill('*');

Pat::left(25,' ');
std::cout<<"\tMenu"<<"Price"<<l;

Pat::left(25,'.');
std::cout<<"\tRoti(3 pieces)"<<"TK "<<a*3<<l;

Pat::left(25,'.');
std::cout<<"\tChicken soup(1 cup)"<<"TK "<<b*1<<l;

Pat::left(25,'.');
std::cout<<"\tMalai Tea(1 cup)"<<"TK "<<c*1<<l;

Pat::right(25,' ');
std::cout<<"\tTotal   "<<" TK "<<(a*3+b*1+c*1)<<l;

Pat::fill('*');
}

void Menu(int dineTime,int loc ){

static std::stringbuf buf;
static std::ostream o(&buf);
o<<" Welcome to ***Halum Resto***"<<l;
if(loc==1)
     o<<"Please note,TK 10 transport charge will be added for food delivery in Mirpur."<<l;

else if(loc==2)
      o<<"Please note,TK 50 transport charge will be added for food delivery in Uttara."<<l;

else if(loc==3) 
      o<<"Please note,TK 50 transport charge will be added for food delivery in Banani and Gulshan."<<l;
 
else if(loc==4) 
      o<<"Please note,TK 100 transport charge will be added for food delivery in Puran Dhaka."<<l;
else
     o<<"Sorry,our service is not available there at the moment."<<l;

std::cout<<buf.str()<<l;

if(dineTime==1) Carte::breakfast();
else if(dineTime==2) Carte::lunch();
else if(dineTime==3) Carte::dinner();
else std::cout<<"Sorry,no other menu available! "<<l;

}
}
int main()
{
Pat::fill('&');
Carte::Menu( 3,4);
Pat::fill('&');
return 0;
}

Show compiler warnings [ + ] Compiler args [ + ] Show input
Compilation time: 0.62 sec, absolute running time: 0.15 sec, cpu time: 0.01 sec, memory peak: 5 Mb, absolute service time: 0,9 sec