Question

Who knows how to do pseudocode on this topic?

The local driver's license office has asked you to design a program that grades the written portion of the driver's license exam. The exam has 20 multiple choice questions. Here are the correct answers:

1. B

2. D

3. A

4. A

5. C

6. A

7. B

8. A

9. C

10. D

11. B

12. C

13. D

14. A

15. D

16. C

17. C

18. B

19. D

20. A

Your program should store these correct answers in an list. (Store each question's correct answer in an element of a String list). The program should ask the user to enter the student's answers for each questions, which should be stored in another list. After the student's answers have been entered, the program should display a message indicating whether the student passed or failed the exam. (A student must correctly answer 15 of the 20 questions to pass the exam). The program should also display the total number of correctly answered questions, the total number of incorrectly answered questions, and a list showing the question numbers of the incorrectly answered questions.

Notes:

1. pseducode program

2. Your program needs three lists: the first list holds the correct answers, the second list holds the student's answers, and the third list holds the question numbers for those questions that are not answered correctly.

3. Input validation is required for student's answers: when the input is not A, B, C, or D, your program needs to display an error message and get another input. The input validation is done using a while loop.

4. After getting the student's answers, the program will compare the two lists. If a question is answered wrong, the question number of that question will be put into the third list

Answer 1

#include <iostream>

using namespace std;

int main()
{
    int i=0,c=0,k=0;
    int arr[20];//list which will show incorrect answers
   char str1[]={'B','D','A','A','C','A','B','A','C','D','B','C','D','A','D','C','C','B','D','A'};//the correct list
   char str2[20];//the list of student answers
   cin>>str2;
   //validating input
   while(i<20){
       if((str2[i]!='A')&&(str2[i]!='B')&&(str2[i]!='C')&&(str2[i]!='D')){
           cout<<"input error at"<<i+1<<"try again";
           cin>> str2[i];
       }
       i++;
       
       }
       //comparing the answers
   for(i=0;i<20;i++){
       if(str1[i]!=str2[i]){
           c++;
           arr[k]=i+1;
           k++;
       }
       
   }
   if(c>5){
      cout<<"Student failed the exam\n"; 
   }
   else{
      cout<<"Student passed the exam\n"; 
   }
   cout<<"The number of correctly answered questions are"<<20-c<<"\n";
   cout<<"The number of incorrectly answered questions are"<<c<<"\n";
   if(c!=0){
   cout<<"list showing number of the incorrectly answered questions\n";
   //prints the list of incorrect answered questions
   for(i=0;i<k;i++){
       cout<<arr[i]<<"\n";
   }
   }
   return 0;
}

Sample output: