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  1. #include <stdio.h>
  2. int main ()
  3. {
  4. /* variable definition: */
  5. char StudentName[100];
  6. float ExamValue, Sum, Avg;
  7. int students,howmanystudents,exams;
  8.  
  9. // Loop through unlimited Students
  10.  
  11. howmanystudents = 0;
  12.  
  13. while (howmanystudents >= 0)
  14. {
  15. 	printf("How many students grades would you like to average?\n");
  16. 	scanf("%d", &howmanystudents);
  17.  
  18. 	if(howmanystudents >= 0)
  19. 			break;
  20.  
  21. }
  22.  
  23. students = 0;
  24.  
  25. while (students = howmanystudents)
  26. {
  27. 	if (students >= 0)
  28. 	{				  	
  29. 		for (students=0; students < howmanystudents; students++)
  30. 		{
  31. 		// reset Sum to 0
  32. 			Sum =0.0;
  33. 			printf("Enter Student Name \n");
  34. 			scanf("%s", StudentName);
  35.  
  36. 		// Nested Loop for Exams
  37. 		for (exams=0; exams < 3; exams++)
  38. 			{
  39. 			printf ("Enter exam grade: \n");
  40. 			scanf("%f", &ExamValue);
  41. 			Sum += ExamValue;
  42. 			}
  43. 		}	
  44. 		Avg = Sum/3.0;
  45. 		printf( "Average for %s is %f\n",StudentName,Avg);
  46. 	  }
  47. 	if (students < 0)
  48. 	{
  49. 	printf("Please enter the number of students/exams you would like averaged.\n");								
  50. 									break;
  51. 	}
  52. }
  53. return 0;
  54. }
Success #stdin #stdout 0s 9432KB
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How many students grades would you like to average?
https://ideone.com/5aPVX1
language:
C (gcc 8.3)
created:
7 years ago
visibility:
public

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