Can anyone fix my code?

Question

I can not solve this question please help me out
Q: 40 students in a class appeared in their examination. Their mark sheets have been given
to you. The grade column of the mark sheet contains the Grade (A, B, C or F) obtained
by the student. Write a function to calculate the total number of students who got F grade.
Use Array to store grade [char grade [40]].
Grade.txt
B
A
My ans:
#include<stdio.h>
#include<string.h>
struct student
{
char grade[2];
};
int gradef(struct student a[], int si)
{
int c=0;
for (int i = 0; i < 40; i++)
{
if(a[i].g!=F)
{
c++;
}
}
return 0;
}
int main()
{
struct student s[40];
freopen ("Grade.txt","r",stdin);
for (char i = 0; i < 40; i++)
{
scanf("%s",s[i].grade);
}
for (char i = 0; i < 40; i++)
{
printf("%s",s[i].grade);
}
char n = gradeF(s,40);
printf("%s", n):
}

Answer 1

#include<stdio.h>
#include<string.h>
struct student
{
char grade[2];
};
int gradef(struct student a[], int si)
{
int c=0;
for (int i = 0; i < 40; i++)
{
if(a[i].grade[0]=='F')
{
c++;
}
}
return c;
}
int main()
{
struct student s[40];
for (int i = 0; i < 40; i++)
{
scanf("%c\n",&s[i].grade[0]);
}
int n = gradef(s,40);
printf("%d", n);
return 0;
}

Answer 2

Mustaq Mahmud Tafhim
If you want to read from file you don't have to use scanf again. Also for accessing index always use int. Don't receive int into a char variable. There are so many silly mistakes, check carefully and learn.

Answer 3

Yes I would have used FILE *fptr and fopen () with fscanf() probably. Also the struct in itself is unnecessary, you only need FILE and char are[]. Hope that helps.