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  1. //Ryan Robateau				         CSC5   			   Chapter 7, P. 446, #9
  2. //
  3. /*******************************************************************************
  4.  * Corrected DL Exam
  5.  * _____________________________________________________________________________
  6.  * This program compares right answers and wrong answers for 20 questions in 
  7.  * an exam.
  8.  * 
  9.  * For the purposes of this program, a student must answer 15 
  10.  * out of 20 correctly to pass.
  11.  * _____________________________________________________________________________
  12.  ******************************************************************************/
  13. #include <iostream>
  14. using namespace std;
  15.  
  16. int main() 
  17. {
  18.  
  19. 	const int NUM_Q = 20;	
  20. 	char student[NUM_Q];	// INPUT - Student Answers
  21. 	char correct[NUM_Q] = {'B', 'D', 'A', 'A', 'C',
  22. 						   'A', 'B', 'A', 'C', 'D', 
  23. 						   'B', 'C', 'D', 'A', 'D', 
  24. 						   'C', 'C', 'B', 'D', 'A'}; 
  25. 	int numWrong = 0;		// OUTPUT - Nmber of wrong answers
  26. 	int numCorrect = 0;		// OUTPUT - Number of correct answers
  27. 	int count;
  28. 	int incorrect[NUM_Q];
  29.  
  30. 	for (count = 0; count < NUM_Q; count++)
  31. 	{
  32. 		cout << "Enter your answer for #" << count + 1 << ": " << endl;
  33. 		cin >> student[count];
  34.  
  35.  
  36. 		while (student[count] != 'A' && student[count] != 'B' && student[count] 
  37. 		!= 'C' && student[count] != 'D')
  38. 		{
  39. 			cout << endl;
  40. 			cout << "<ERROR: Please input a valid answer A, B, C, or D>";
  41. 			cout << endl << endl;
  42. 			cout << "Enter your answer for #" << count + 1 << ": " << endl;
  43. 			cin >> student[count];
  44. 		}
  45. 	}
  46.  
  47. 	// Correct the student's test
  48. 	for (count = 0; count < NUM_Q; count++)
  49. 	{
  50. 		if (student[count] == correct[count])
  51. 			numCorrect++;
  52. 		else
  53. 		{
  54. 			numWrong++;
  55. 			incorrect[count - numCorrect] = count + 1;
  56. 		}
  57. 	}
  58.  
  59. 	// Determine passing or failing
  60. 	if (numCorrect >= 15)
  61. 		cout << "\nYou've passed the test!" << endl;
  62. 	else 
  63. 		cout << "\nYou failed the test." << endl;
  64.  
  65. 	// Display score details
  66. 	cout << "Score: " << numCorrect << "/" << NUM_Q << endl;
  67. 	cout << "Number of incorrect answers: " << numWrong << endl;
  68. 	cout << "Incorrectly answered questions: "; 
  69. 	for (count = 0; count < numWrong; count++)
  70. 	{
  71. 		cout << "#" << incorrect[count] << " ";
  72. 	}
  73. 	return 0;
  74. }
Success #stdin #stdout 0.01s 5300KB
comments (?)
stdin
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B
D
A
A
C
A
B
A
C
D
B
C
G
G
D
A
D
C
C
B
D
D
stdout
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Enter your answer for #1: 
Enter your answer for #2: 
Enter your answer for #3: 
Enter your answer for #4: 
Enter your answer for #5: 
Enter your answer for #6: 
Enter your answer for #7: 
Enter your answer for #8: 
Enter your answer for #9: 
Enter your answer for #10: 
Enter your answer for #11: 
Enter your answer for #12: 
Enter your answer for #13: 

<ERROR: Please input a valid answer A, B, C, or D>

Enter your answer for #13: 

<ERROR: Please input a valid answer A, B, C, or D>

Enter your answer for #13: 
Enter your answer for #14: 
Enter your answer for #15: 
Enter your answer for #16: 
Enter your answer for #17: 
Enter your answer for #18: 
Enter your answer for #19: 
Enter your answer for #20: 

You've passed the test!
Score: 19/20
Number of incorrect answers: 1
Incorrectly answered questions: #20
https://ideone.com/TavSsF
Corrected DL Exam
language:
C++ (gcc 8.3)
created:
1 year ago
visibility:
secret

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