The local Driver’s License Office has asked you to write a program that grades t
ID: 3625138 • Letter: T
Question
The local Driver’s License Office has asked you to write 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 6.A 11.B 16.C
2.D 7.A 12.D 17.A
3.A 8.D 13.C 18.D
4.A 9.B 14.A 19.A
5.C 10.B 15.C 20.A
Your program should store the correct answers shown above in an array. It should ask the user to enter the student’s answers for each of the 20 questions, which should be stored in another array. After the student’s answer 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 pas the exam). It should then display the total number of correctly answered questions, and the total number of incorrectly answered questions.
Input validation: Only accept the letters A, B, C or D.
Explanation / Answer
please rate - thanks
#include <iostream>
using namespace std;
int main()
{char correct[]={"BDAACAADBBBDCACCADAA"};
char student[20];
int right=0,wrong=0,i;
for(i=0;i<20;i++)
{cout<<"Enter answer for question "<<i+1<<": ";
cin>>student[i];
student[i]=toupper(student[i]);
if(student[i]<'A'||student[i]>'D')
{cout<<"invalid entry - try again ";
i--;
}
}
if(right>=15)
cout<<" Great News you passed :) ";
else
cout<<" Sorry you failed :( ";
cout<<" Total correct answers: "<<right;
cout<<" Total wrong answers: "<<wrong<<endl;
system("pause");
return 0;
}
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