Please help! I cannot figure this code out at all! I keep getting a Runtime error!

 

Modify the code to be able to input an undetermined number of students. You will still only have 3 exams for each student. Support your experimentation with screen captures of executing the new code

 

#include <stdio.h>

int main ()

{

  /* variable definition: */

  char StudentName[100];

  float ExamValue, Sum, Avg;

  int students,exams;

   // Loop through 5 Students

  for (students=0; students <5 ; students++)

  {

     // reset Sum to 0

     Sum =0.0; 

     printf("Enter Student Name n");

     scanf("%s", StudentName);  

     // Nested Loop for Exams

    for (exams=0; exams < 3; exams++)

    {

        printf ("Enter exam grade: n");

        scanf("%f", &ExamValue);

        Sum += ExamValue;

    }  

    Avg = Sum/3.0;

    printf( "Average for %s is %fn",StudentName,Avg);

  }

  return 0;

}