error: expected expression before 'student' - c

Question

very new to c. I wrote the following code.
typedef struct
{
char name[100];
int comp, math, phys;
int total;
} student[100];
int main(int argc, char** argv) {
int number;
do
{
printf("Enter how many students: ");
scanf("%d", &number);
if(number < 0)
{
printf("Wrong input! \n");
}
}
while(number < 0);
int i;
for(i=0; i < number; ++i)
{
printf("Student %d's name: ", i+1);
scanf("%s", student[i].name);
printf("Comp: " );
scanf("%d", &student[i].comp);
printf("Phys: " );
scanf("%d", &student[i].phys);
printf("Math: " );
scanf("%d", &student[i].math);
&student[i].total = &student[i].comp + &student[i].math + &student[i].phys;
}
printf("s%", &student[1].name);
return (EXIT_SUCCESS);
}
I keep getting error: expected expression before 'student' in all the scanf lines and the last printf line. What am I doing wrong? Very new to C so any help would be great.

Answer 1

Do
struct
{
char name[100];
int comp, math, phys;
int total;
} student[100];
If you want to combine the definition and identifier. You should know that student isn't a type, it's an array of structs without a name. There are alternatives to what you want to accomplish. For example:
typedef struct student
{
char name[100];
int comp, math, phys;
int total;
} student;
student students[100];

Answer 2

Drop the typedef keyword. You're wanting to create an array of 100 student objects, not a type name representing an array of 100 students.
Hopefully this helps you in the future:
// `Type var` is a shorter way to write `struct tag var`
// `Type` is just an alias (another name) for `struct tag`
typedef struct tag {
int x;
} Type;
// `Type100 arr` is a shorter way to write `struct tag100 arr[100]`
// `Type100` is just an alias for `struct tag100[100]`
// No, you can't do `struct tag100[100] arr`; `Type100 arr` gets around this restriction
typedef struct tag100 {
int x;
} Type100[100];
// `var` contains a single value of type `struct tagX`
struct tagX {
int x;
} var;
// `arr` is an array of 100 values of type `struct tagX100`
struct tagX100 {
int x;
} arr[100];