Mark 2.c

#include <stdio.h>

char calculateGrade(float marks)
{
    if (marks >= 90)
    {   return 'A';}
    else if (marks >= 80) 
    {return 'B'; }
    else if (marks >= 70)
    {   return 'C';}
    else if (marks >= 60)
    {   return 'D';}
    else
    {   return 'F';}
}
int main()
{
 float subjectMarks[5];
 float totalMarks = 0.0;
 float averageMarks;
 printf("Enter the marks for five subjects (out of 100):\n");
 for (int i = 0; i < 5; i++)
 {
     printf("Subject %d: ", i + 1);
     scanf("%f", &subjectMarks[i]);
     totalMarks += subjectMarks[i];
 }
 averageMarks = totalMarks / 5;
 printf("\nGrades for each subject:\n");
 for (int i = 0; i < 5; i++)
 {  printf("Subject %d: %c\n", i + 1, calculateGrade(subjectMarks[i]));
 }
 printf("\nAverage Marks: %.2f\n", averageMarks);
 printf("Grade: %c\n", calculateGrade(averageMarks));
 return 0;
}