Answer to Question #195139 in C++ for Vina

Question

Draw a series of variable diagrams for the program below using the conventions of the Study Guide. Assume that the following input is given: 2010 t 1 #include 2 #include 3 using namespace std; 4 int main() 5 { 6 int year; char code; 7 bool book = true; float discount = 0.20; 8 cin >> year >> code; 9 switch (year) 10 { 11 case 2008: case 2009: 12 if (code == 'c') 13 if (!book) 14 discount += 0.20; 15 break; 16 case 2010: 17 if (book) 18 if (code == 't') 19 { 20 book = false; 21 code = 'g'; 22 } 23 case 2011: 24 if (discount > 0.20 || code == 'g') 25 discount = 0.15; 26 else 27 discount += 0.10; 28 default: 29 discount = 0.25; 30 code = 'b'; 31 book = true; 32 } 33 discount = 0.35; 34 cout << year << " " << code << " " << book << " " << discount << endl; 35 return 0; 36 }

Answer 1

#include<iostream>
#include<conio.h>
using namespace std;
int main()
{
    int year;
    char code;
    bool book = true;
    float discount = 0.20;
    cin >> year >> code;
    switch (year)
    {
        case 2008:
        case 2009: if (code == 'c')
                      if (!book)
                        discount += 0.20;
                   break;
        case 2010: if (book)
                      if (code == 't')
                        {
                            book = false;
                            code = 'g';
                        }
        case 2011: if (discount > 0.20 || code == 'g')
                       discount = 0.15;
                   else discount += 0.10;
        default: discount = 0.25;
                 code = 'b';
                 book = true;
    }
    discount = 0.35;
    cout << year << " " << code << " " << book << " " << discount << endl;
    return 0;
}