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  1. // This program averages test scores. It asks the user for the 
  2. // number of students and the number of test scores per student
  3. #include <iomanip>
  4. #include <iostream>
  5. using namespace std;
  6.  
  7. int main() {
  8. 	int numStudents;
  9. 	int numTests;
  10. 	double total;
  11. 	double average;
  12.  
  13. 	cout << fixed << showpoint << setprecision(1);
  14.  
  15. 	cout << "This program averages the number of test scores.\n";
  16. 	cout << "For how many students do you have scores? ";
  17. 	cin >> numStudents;
  18.  
  19. 	cout << "How many test scores does each student have? ";
  20. 	cin >> numTests;
  21.  
  22. 	for (int student = 1; student <= numStudents; student++)
  23. 	{
  24. 		total = 0;
  25. 		for (int test = 1; test <= numTests; test++)
  26. 		{
  27. 			double score;
  28. 			cout << "Enter Score " << test << " for ";
  29. 			cout << "student " << student << ": ";
  30. 			cin >> score;
  31. 			total += score;
  32. 		}
  33. 		average = total / numTests;
  34. 		cout << "The average score for student " << student;
  35. 		cout << " is " << average << ".\n\n";
  36. 	}
  37. 	return 0;
  38. }
Success #stdin #stdout 0s 5304KB
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Standard input is empty
stdout
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This program averages the number of test scores.
For how many students do you have scores? How many test scores does each student have? The average score for student 1 is -nan.

The average score for student 2 is -nan.
https://ideone.com/oBVGPv
Nested Loops
language:
C++ (gcc 8.3)
created:
30 days ago
visibility:
public

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