#include<iostream>
#include<string.h>
#include<stdlib.h>
using namespace std;
class Card
{
protected:
float remain;
public:
Card(){}
Card(float _remain):remain(_remain){}
float Getremain(){return remain;}
float credit(float _price);
float recharge(float moneny);
virtual void showmoney()=;
virtual void isme(float a)=;
virtual void showinfo()=;
virtual const char* Getname()=;
//virtual bool operator >(Card *c) = 0;
}; class Stu : public Card
{
protected:
int stunum;
const char *name;
public:
Stu(){}
Stu(int num,const char* _name):stunum(num),name(_name){}
Stu(float _remain,int num,const char *_name):Card(_remain),stunum(num),name(_name){}
void showmoney();
void isme(float a);
void showinfo();
const char *Getname() {return name;}
bool operator >(Card *c);
};
bool Stu::operator >(Card *c)
{
if(remain>c->Getremain())
return true;
else
return
false;
}
void Stu::showmoney()
{}
void Stu::isme(float a)
{
remain=remain - a; }
void Stu::showinfo()
{
cout<<name<<"\t"<<stunum<<"\t"<<remain<<"\t"<<endl;
} class Gra:public Stu
{
private:
float wage; public:
Gra(float _remain,int num,const char *_name,float _wage):Stu(_remain,num,_name),wage(_wage){ }
void showmoney();
void isme(float a);
void showinfo();
const char *Getname(){return name;}
bool operator >(Card *c);
};
bool Gra::operator >(Card *c)
{
if(remain>c->Getremain())
return true;
else
return
false;
}
void Gra::showmoney()
{}
void Gra::isme(float a)
{
remain = remain-a; }
void Gra::showinfo()
{
cout<<name<<"\t"<<stunum<<"\t"<<remain<<"\t"<<wage<<"\t"<<endl;
}
class Employees :public Card
{
private:
int wonum;
const char* ename;
public:
Employees( float _remain,int _wonum,const char* _ename):Card(_remain),wonum(_wonum),ename(_ename){}
void showmoney();
void isme(float a);
void showinfo();
const char *Getname(){return ename;}
bool operator >(Card *c);
};
bool Employees::operator >(Card *c)
{
if(remain>c->Getremain())
return true;
else
return
false;
}
void Employees::showmoney()
{}
void Employees::isme(float a)
{
remain = remain-a; }
void Employees::showinfo()
{
cout<<ename<<"\t"<<wonum<<"\t"<<remain<<"\t"<<endl;
} class Canteen
{
private:
const char* menu;
float price;
public:
Canteen(const char* _menu,float _price):menu(_menu),price(_price){}
void showmenu();
const char *Getmenu(){return menu;}
float getprice(){return price;}
};
void Canteen::showmenu()
{
cout<<menu<<"\t"<<price<<"\t"<<endl;
}
int main()
{
float tmp = ;
float tmp1 = ;
int i,flag1,flag2,flag3;
char pname[];
char foodbuf[];
Canteen c1("fish",10.0);
Canteen c2("leek",8.5);
Canteen c3("celery",7.2);
Canteen c4("cole",5.8);
Canteen c5("buds",6.9);
Canteen *p1[]={&c1,&c2,&c3,&c4,&c5};
Stu s(150.0,,"timi");
Stu s1(200.0,,"tom");
Gra g(180.0,,"lucy",700.0);
Gra g1(200.0,,"jay",700.0);
Employees e(190.0,,"jimi");
Card *p[] = {&s,&s1,&g,&g1,&e};
cout<<"people infomation:\n"<<endl;
cout<<"NO.\t"<<"name\t"<<"num\t"<<"remain\t"<<"wage\t"<<endl;
for(i=;i<;i++)
{
cout<<i<<"\t";
p[i]->showinfo();
} cout<<"input name who is you:"<<endl;
char *cp;
cin>>pname; cout<<endl; for(i=;i<;i++)
{
if(!strncmp(pname,p[i]->Getname(),strlen(pname)-))
{
cout<<"NO.\t"<<"name\t"<<"num\t"<<"remain\t"<<"wage\t"<<endl;
cout<<i<<"\t";
p[i]->showinfo();
flag1 = i;
break;
} } while()
{
cout<<"1: list\t\t2: take your order\t3:show max and min\t0:quit\t"<<endl;
cout<<"please input your select:"<<endl;
int select;
cin>>select;
switch(select)
{
case : exit();
case :{
cout<<"NO.\t"<<"food\t"<<"price\t"<<endl;
for(i=;i<;i++)
{
cout<<i<<"\t";
p1[i]->showmenu(); }
break;
}
case :{
cout<<"NO.\t"<<"food\t"<<"price\t"<<endl;
for(i=;i<;i++)
{
//cout<<i<<"\t";
p1[i]->showmenu(); }
cout<<"please input which do you like:"<<endl;
cin>>foodbuf;
for(i=;i<;i++)
{//cout<<"hello"<<endl;
if(!strncmp(foodbuf,p1[i]->Getmenu(),strlen(foodbuf)-))
{ //cout<<"hello"<<endl;
p[flag1]->isme(p1[i]->getprice());
cout<<"remaining:"<<p[flag1]->Getremain()<<endl;
} }
for(i=;i<;i++)
{ //cout<<"hello\n";
if(tmp < p[i]->Getremain())
{
tmp = p[i]->Getremain();
flag2 = i;
}
} for(i=;i<;i++)
{
if(tmp1>p[i]->Getremain())
{tmp1 = p[i]->Getremain();
flag3 = i;}
} cout<<"the max is:"<<endl;
p[flag2]->showinfo();
cout<<"the min is:"<<endl;
p[flag3]->showinfo();
break;
}
case :
{
Card *maxp = p[],*minp = p[];
for(i=;i<;i++)
{
if(p[i]>p[i+])
{
minp = p[i-];
cout<<i<<endl;
}
}
for(i=;i<;i++)
{
if(p[i+]>p[i])
{
maxp = p[i];
cout<<i-<<endl;
}
}
cout<<"the min remain is:"<<endl;
minp->showinfo();
cout<<"the max remain is:"<<endl;
maxp->showinfo(); break;
} default:{break;}
}
}
}