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  1. #include <stdio.h>
  2.  
  3. int main(){
  4.  
  5. int grades [100]; 
  6. int i = 0;
  7. int small, big, input;
  8.  
  9. printf("Enter a series of grades. When done, enter any number above 100.\n\n");
  10.  
  11. while (i <= 100) { //while loop to set maximum for array
  12.     printf("Enter grade:");
  13.  
  14.     if (scanf("%d", &input) == 1) {
  15.         if (input >= 0 && input <=100) {  
  16.             grades[i] = input; //if good, add to array
  17.             i++;
  18.             }
  19.         else {
  20.             printf("\n\nExiting entry.\n");
  21.             printf("\n\nGrades entered:\n\n");
  22.             break; //exiting loop
  23.             }
  24.         }
  25.     }
  26. int x, y;
  27.     for (x = 0; x < i; x++) {
  28.         printf("Grade: %d\n", grades[x]);  //print array
  29.         }
  30.     big = small = grades[0];
  31.     for (y = 0; y < i; y++) {
  32.         if (grades[y] > big) {
  33.             big = grades[y];
  34.             }
  35.         else if (grades[y] < small) {
  36.             small = grades[y];
  37.             }
  38.         }
  39.     printf("Highest number : %d\n", big);
  40.     printf("Smallest number: %d\n", small);
  41. 	int sum = 0, avg = 0;
  42. 	for (y = 0; y < i; y++) {
  43.     sum += grades[y];
  44.     }
  45.     avg = (double) sum / i;
  46. 	printf("Avg: %d\n", avg);
  47.  
  48.     return 0;
  49. }
Success #stdin #stdout 0s 2116KB
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stdin
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stdout
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Enter a series of grades. When done, enter any number above 100.

Enter grade:Enter grade:Enter grade:Enter grade:Enter grade:Enter grade:Enter grade:Enter grade:Enter grade:Enter grade:

Exiting entry.


Grades entered:

Grade: 1
Grade: 2
Grade: 4
Grade: 5
Grade: 7
Grade: 6
Grade: 5
Grade: 7
Grade: 8
Highest number : 8
Smallest number: 1
Avg: 5
https://ideone.com/ZEaDue
language:
C (gcc 8.3)
created:
9 years ago
visibility:
public

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