Решение всех задач из учебника Стивена Праты

#include <iostream>
 
int main ()
{ 
    using namespace std;
    const int ArSize = 20;
    char Fname[ArSize];
    char Lname[ArSize];
    int age;
    char bit;
    //enum gradeW {A,B,C};
    cout<<"what is your first name "<<endl;
    cin.getline(Fname,ArSize);
    cout<<"what is your last name "<<endl;
    cin.getline(Lname,ArSize);
    cout<<"what letter grade do you deserve(A,B,C) "<<endl;
    cin>>bit;
    cout<<"what is your age "<<endl;
    cin>> age ;
    cin.get();
    cout<<"Name: "<<Lname<<" "<<Fname<<endl;
    cout<<"Age: "<<age<<endl;
    switch (bit)
        {case 'A':
            cout<<"Grade B "<<endl;
            break;
        case 'B':
            cout<<"Grade C"<<endl;
            break;
        case 'C':
            cout<<"Grade D"<<endl;
            break;
        default: cout<<"wrong"<<endl;}
    cin.get();
    return 0;
  }

#include <iostream>
#include <string>
int main ()
{ 
    using namespace std;
    string Fname;
    string Lname;
    int age;
    char bit;
    cout<<"what is your first name "<<endl;
    getline(cin,Fname);
    cout<<"what is your last name "<<endl;
    getline(cin,Lname);
    cout<<"what letter grade do you deserve(A,B,C) "<<endl;
    cin>>bit;
    cout<<"what is your age "<<endl;
    cin>> age ;
    cin.get();
    cout<<"Name: "<<Lname<<" "<<Fname<<endl;
    cout<<"Age: "<<age<<endl;
    switch (bit)
        {case 'A':
            cout<<"Grade B "<<endl;
            break;
        case 'B':
            cout<<"Grade C"<<endl;
            break;
        case 'C':
            cout<<"Grade D"<<endl;
            break;
        default: cout<<"dsfsfsfsfsd"<<endl;}
    cin.get();
    return 0;
  }

#include <iostream>
//#include <string>
int main ()
{ 
    using namespace std;
    const int ArSize = 20;
    char Fname[ArSize];
    char Lname[ArSize];
    cout<<"Enter your first name "<<endl;
    cin.getline(Fname,ArSize);
    cout<<"Enter your last name "<<endl;
    cin.getline(Lname,ArSize);
    cout<<"Name: "<<Lname<<",  "<<Fname<<endl;
    cin.get();
    return 0;
  }

#include <iostream>
struct CandyBar
    {
        char Name [20];
        double netto;
        int Ccal;
    };
int main ()
{ 
    using namespace std;
    CandyBar snack={"Mocha Much",2.3,350};
    cout<<"Struct )))) "<<snack.Name<<snack.netto<<"     "<<snack.Ccal<<endl;
    cin.get();
    return 0;
  }

#include <iostream>
struct CandyBar
    {
        char Name [20];
        double netto;
        int Ccal;
    };
int main ()
{ 
    using namespace std;
    CandyBar snack[3]={
        {"Mocha Much",2.3,350},
        {"sfdsfsdf",2.45,435},
        {"bnderlogi", 2.12 , 777}};
 
    cout<<"Struct  "<<snack[2].Name<<"    "<<snack[2].netto<<"   "<<snack[0].Ccal<<endl;
    cin.get();
    return 0;
  }

#include <iostream>
struct Pizza
    {
        char Name [20];
        double netto;
        int Ccal;
    };
int main ()
{   using namespace std;
    Pizza Peper;
    cout<<"Enter Name:"<<endl;
    cin.getline (Peper.Name,20);
    cout<<"Enter diametr:"<<endl;
    cin>>Peper.netto;
    cout<<"Enter ves:"<<endl;
    cin>>Peper.Ccal;
    cout<<"Pizza: "<<Peper.Name<<endl<<"Diametr: "<<Peper.netto<<endl<<"Ves: "<<Peper.Ccal<<endl;
    cin.get();
    cin.get();
    return 0;
  }

#include <iostream>
#include <string>
struct Pizza
{
    std :: string Name ;
    double netto;
    int Ccal;
    };
int main ()
{   using namespace std;
    Pizza *pz =new Pizza;
    cout<<"Enter diametr:"<<endl;
    cin>>(*pz).netto;
    cout<<"Enter Name:"<<endl;
    cin>>(*pz).Name ;
    cout<<"Enter ves:"<<endl;
    cin>>(*pz).Ccal;
    cout<<"Pizza: "<<(*pz).Name<<endl;
    cout<<"Diametr: "<<(*pz).netto<<endl<<"Ves: "<<(*pz).Ccal<<endl;
    system ("pause");
    delete pz;
    return 0;
  }

#include <iostream>
#include <string>
struct CandyBar
    {
        std::string Name  ;
        double netto;
        int Ccal;
    };
void main ()
{ 
    using namespace std;
    CandyBar *bar= new CandyBar[3];
    bar[0].Name="Mocha Much";
    bar[0].netto=2.3;
    bar[0].Ccal=350;
    bar[1].Name="sfdsfsdf";
    bar[1].netto=2.45;
    bar[1].Ccal=435;
    bar[2].Name="bnderlogi";
    bar[2].netto=2.12;
    bar[2].Ccal=777;
    cout<<"Struct  "<<bar[0].Name<<"    "<<bar[0].netto<<"   "<<bar[0].Ccal<<endl;
    system("pause");
    delete bar;
          }

#include <iostream>
int main ()
{ 
    using namespace std;
    int bar[3];
    cout<<"Vvedite rezyltat 1 "<<endl;
    cin>>bar[0];
    cout<<"Vvedite rezyltat 2 "<<endl;
    cin>>bar[1];
    cout<<"Vvedite rezyltat 3 "<<endl;
    cin>>bar[2];
    int Sr=(bar[0]+bar[1]+bar[2])/3;
    cout<<"Rezyltat  "<<bar[0]<<"    "<<bar[1]<<"   "<<bar[2]<<"  Srednee "<<Sr<<endl;
    system("pause");
}