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  1. // This program allows a user to enter student names and the grades for allows
  2. // of their final exams.  It then outputs the student name and GPA.
  3. // CMIS102 Homework 3
  4. // C Code
  5.  
  6. #include <stdio.h>
  7. #include <string.h>
  8.  
  9. int main(void) {
  10.   // Declare and initialize variables
  11.   char studentName[100];
  12.   char letGrade;
  13.   int numGrade;
  14.   int gradeTotal = 0;
  15.   float count, gpa;
  16.  
  17.   // First loop
  18.   // Initializes count and gradeTotal each time the loop
  19.   // is executed and prompts for a student name
  20.   while(1) {
  21.     count = 0;
  22.     gradeTotal = 0;
  23.     printf("Please enter a student name (0 to exit): ");
  24.     scanf("%s", studentName);
  25.     printf("%s\n", studentName);
  26.  
  27.     // If user enters 0, exit program
  28.     if (strcmp(studentName, "0") == 0) {
  29.       printf("Exiting...\n");
  30.       break;
  31.     }
  32.  
  33.     // Enter nested while loop
  34.     // prompts user for letter grades
  35.     else {
  36.       while(1) {
  37.         printf("Enter capital letter grade for %s (0 if finished): ", studentName);
  38.         scanf(" %c", &letGrade);
  39.         printf("%c\n", letGrade);
  40.  
  41.         // If user enters 0, output name and GPA, break loop and go to parent loop
  42.         if (letGrade == '0') {
  43.           // Compute GPA as an average
  44.           gpa = gradeTotal / count;
  45.           printf("%s has a GPA of: %.2f\n", studentName, gpa);
  46.           printf("Continuing to the next student...\n");
  47.           break;
  48.         }
  49.  
  50.         // If not zero, then identify grade integer value from letter grade
  51.         else {
  52.           if (letGrade == 'A')
  53.             numGrade = 4;
  54.           if (letGrade == 'B')
  55.             numGrade = 3;
  56.           if (letGrade == 'C')
  57.             numGrade = 2;
  58.           if (letGrade == 'D')
  59.             numGrade = 1;
  60.           if (letGrade == 'F')
  61.             numGrade = 0;
  62.  
  63.           // Add grade value to gradeTotal
  64.           gradeTotal += numGrade;
  65.  
  66.           // Add one to count for grade entered
  67.           count += 1;
  68.         }
  69.       }
  70.     }
  71.   }
  72.   return 0;
  73. }
  74.  
Success #stdin #stdout 0s 2160KB
comments (?)
stdin
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Bennett
A
B
C
D
F
0
0
stdout
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Please enter a student name (0 to exit): Bennett
Enter capital letter grade for Bennett (0 if finished): A
Enter capital letter grade for Bennett (0 if finished): B
Enter capital letter grade for Bennett (0 if finished): C
Enter capital letter grade for Bennett (0 if finished): D
Enter capital letter grade for Bennett (0 if finished): F
Enter capital letter grade for Bennett (0 if finished): 0
Bennett has a GPA of: 2.00
Continuing to the next student...
Please enter a student name (0 to exit): 0
Exiting...
https://ideone.com/vJsNci
language:
C (gcc 8.3)
created:
8 years ago
visibility:
public

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