(07.10.23) Practice 7

#include<stdio.h>
#define MAX_NAME_LENGTH 50
#define MAX_STUDENTS 3
typedef enum { A,  B,  C,  D,  F
}Score;
typedef struct {
    char name[50];
    int age;
    Score score;
} Student;
void addStudent(Student students[], int count) {
    if (count >= MAX_STUDENTS) {
        printf("Maximum number of students reached.\n");
        return; }
  Student newStudent;
  scanf("%s", newStudent.name);
  scanf("%d", &newStudent.age);
  scanf("%d", &newStudent.score);
  students[count] = newStudent;
  (count)++;
  printf("Student added successfully.\n");
}
void displayStudents(const Student students[], int count) {
 if (count == 0) {
   printf("No students to display.\n");
   return;  }
for (int i = 0; i < count; i++) {
   printf("Student %d:\n", i + 1);
   printf("Name: %s\n", students[i].name);
   printf("Age: %d\n", students[i].age);
   printf("Score: %d\n", students[i].score); }
}
int findHighestScoringStudent(Student students[], int count) {
   if (count == 0) {
      return; }
  int highestIndex = 0;
  for (int i = 1; i < count; i++) {
     if (students[i].score > students[highestIndex].score)
    highestIndex = i; }
 return highestIndex;}

do{int main(){
    Student students[MAX_STUDENTS];
    int choice;
    int count=0;
    scanf("%d",&choice);
       switch(choice)
         {case 1: addStudent(students, count);
                       count ++;
                       break;
          case 2:
                      displayStudents(students, count);
                      break;
          case 3: { int highestIndex = findHighestScoringStudent(students, count);}
                        printf("The highest-scoring student is:\n");
                        printf("Name: %s\n", students[highestIndex].name);
                         printf("Age: %d\n", students[highestIndex].age);
                         printf("Score: %d\n", students[highestIndex].score);
                        break;
         case 4:  printf("Exiting the program. Thank you for using our system!\n");
                       break;
         default: printf("Invalid choice. Please try again.\n");
                      break; }
          printf("\n"); }while(choice<4);}