Question

QUESTION 2 [12] Parents of the pupils of the Park Primary School must pay an amount for outfits for the annual play. All pupils take part in the play, except the Grade 0 pupils. The amount that the parents have to pay is calculated as follows: . The cost of the outfits for Grade 1 and 2 pupils is R45. The cost of the outfits for Grades 3 to 5 is R65. Grade 6 and 7 pupils may play one or two roles. If they play a lead role, they may only play one role. The cost of the outfits is R70 if they play one role. If this role is a lead role, the cost is R100. If they play two roles, the cost is R130. Use a switch statement and write down ONLY the necessary C++ statements to calculate and display the amount to be paid or display an appropriate error message if required. Do NOT write a complete program. Use the following variables: int grade; int fee; bool leadrole; //true if a child plays a lead role bool roles 2; //true if a child plays 2 roles Assume that values have been assigned to these variables already.

Answer 1

The program for calculating the amount to be paid by the students is given below-

The necessary C++ statements are-

int amount = 0;
    switch(grade)
    {
        case 1:
        case 2:
            amount = 45;
            break;

        case 3:
        case 4:
        case 5:
            amount = 65;
            break;
        
        case 6:
        case 7:
            if(roles2 == false)//Single role is played
            {
                if(leadrole)//If single role is leadrole
                    amount = 100;
                else
                    amount = 70;
            }
            else //For 2 roles
                amount = 130;
            break;
        
        default:
            cout << "Wrong grade is chosen.";
    }
    cout << "Amount to be paid: "  << amount;

The complete program if you want is-

#include<iostream>
#include<cstdio>
 
using namespace std;

int main()
{
    //As given in the question, these values are already present. Else input it by cin.
    int grade;
    int fee;
    bool leadrole;
    bool roles2;

    int amount = 0;
    switch(grade)
    {
        case 1:
        case 2:
            amount = 45;
            break;

        case 3:
        case 4:
        case 5:
            amount = 65;
            break;
        
        case 6:
        case 7:
            if(roles2 == false)//Single role is played
            {
                if(leadrole)//If single role is leadrole
                    amount = 100;
                else
                    amount = 70;
            }
            else //For 2 roles
                amount = 130;
            break;
        
        default:
            cout << "Wrong grade is chosen.";
    }
    cout << "Amount to be paid: "  << amount;
    return 0;
}

Code Screenshot -

File Edit Selection View Go Run Terminal Help e Q 9 La 8 m * temp.cpp X home > mohit > Desktop > G temp.cpp > main() 1 #include<iostream> 2 #include<cstdio> 3 4 using namespace std; 5 6 int main() 7 { //As given in question, these values are already present. Else input it by cin. 9 int grade=6; 10 int fee; 11 bool lead role=false; 12 bool roles2=true; 13 14 int amount = 0; 15 switch(grade) 16 { 17 case 1: 18 case 2: 19 amount = 45; 20 break; 21 case 3: 22 case 4: 23 case 5: 24 amount = 65; 25 break; 26 case 6: 27 case 7: 28 if(roles 2 == false) //Single role is played 29 { 30 if(lead role)//If single role is leadrole 31 amount = 100; 32 else 33 amount = 70; 34 } 35 else //For 2 roles 36 amount = 130; 37 break; 38 default: 39 cout << "Wrong grade is chosen."; 40 } 41 cout << "Amount to be paid: << amount << "\n"; 42 }

Run the code -

• Compile it by g++ <filename.cpp>
• Run it as ./a,out

OUTPUT -

If I manually set the values, grade=6,leadrole=false,roles2=true, then the output will be-

(base) mohit@wildbeast:-/Desktop$ g++ temp.cpp (base) mohit@wildbeast:-/Desktop $ ./a.out Amount to be paid: 130