This program should enter student records into a linked listof structures and pr

Question

This program should enter student records into a linked listof structures and print out the entire class record at theend. I have to use malloc to allocate memory space for eachstructure -I think I need a for loop at the end that contains theprintf( ) lines, but what arguments do I use in the forloop?? -I am getting an error in line 100: error: expected identifier before struct I really would appreciate some help with this, I think I amclose to getting it right, but I could be wrong. code so far: #include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#define MAX_NAME_LEN 50 struct record{
char name[MAX_NAME_LEN+1];
int number;
int quiz1;
int quiz2;
int midterm;
int final;
float numeric;
struct record *next;
}; struct record *first = NULL; // points to first studentrecord
struct record *new_record; // points to the next node forinsert void insert_rec(struct record record);
int read_line(char str[], int n); //function declaration, will readin names of students int main(void)
{
    int count=0;
    float sum_q1=0, sum_q2=0, sum_mid=0, sum_fin=0,sum_total=0;
    float average_q1, average_q2, average_mid,average_fin, average_total;
    char choice;
    struct record record;
do{
        printf("Enter thestudent's name: ");
        scanf("%s",record.name);
        read_line(record.name,MAX_NAME_LEN);
        printf("Enter thestudent's grade for quiz #1: ");
        scanf("%d",&record.quiz1);  
        printf("Enter thestudent's grade for quiz #2: ");
        scanf("%d",&record.quiz2);
        printf("Enter thestudent's grade for midterm: ");
        scanf("%d",&record.midterm);
        printf("Enter thestudent's grade for final: ");
        scanf("%d",&record.final);
        record.numeric =(((record.quiz1+record.quiz2) * 1.25)+(record.midterm *0.25)+(record.final * 0.50));
        printf("%s's numericscore for the entire course is %.2f ", record.name,record.numeric);
       //student[num_students++] = record;
        insert_rec(record);
        printf(" ");
        printf("Would you liketo enter another student record? y(yes) or n(no)?");
        scanf(" %c",&choice);
        count++;
//for(i = 0; i <MAX_STUDENT; i++)
        //{
           sum_q1 += record.quiz1;
           sum_q2 += record.quiz2;
           sum_mid += record.midterm;
           sum_fin += record.final;
           sum_total += record.numeric;
        //}
        average_q1 = (sum_q1 /count) / 100;
        average_q2 = (sum_q2 /count) / 100;
        average_mid = (sum_mid /count) / 100;
        average_fin = (sum_fin /count) / 100;
        average_total =(sum_total / count) / 100;
    }while(choice != 'n');
     
   printf(" Name       Quiz1       Quiz2       Midterm       Final        Total ");
   printf("----------------------------------------------------------------------- ");
   printf("           Quiz1       Quiz2       Midterm       Final        Total ");
   printf("----------------------------------------------------------------------- ");
    printf("Average %9.1f%9.1f%9.1f%9.0f%9.3f ",average_q1, average_q2, average_mid, average_fin,average_total);
    printf(" ");

   getchar();
    return 0;
}
   
int read_line(char str[], int n) //reads string into an array
{
int ch, i = 0;
while (isspace(ch = getchar()))
    ;
str[i++] = ch;
while ((ch = getchar()) != ' ') {
    if (i < n)
      str[i++] = ch;
}
str[i] = '';
return i;
}
void insert_rec(struct record record)
{
    new_record->next = first;
    first = new_record;
    first = NULL;
    new_record = malloc(sizeof(struct record));
    new_record->struct record;
}
This program should enter student records into a linked listof structures and print out the entire class record at theend. I have to use malloc to allocate memory space for eachstructure -I think I need a for loop at the end that contains theprintf( ) lines, but what arguments do I use in the forloop?? -I am getting an error in line 100: error: expected identifier before struct I really would appreciate some help with this, I think I amclose to getting it right, but I could be wrong. code so far: #include <stdio.h>
#include <ctype.h>
#include <stdlib.h>
#define MAX_NAME_LEN 50 struct record{
char name[MAX_NAME_LEN+1];
int number;
int quiz1;
int quiz2;
int midterm;
int final;
float numeric;
struct record *next;
}; struct record *first = NULL; // points to first studentrecord
struct record *new_record; // points to the next node forinsert void insert_rec(struct record record);
int read_line(char str[], int n); //function declaration, will readin names of students int main(void)
{
    int count=0;
    float sum_q1=0, sum_q2=0, sum_mid=0, sum_fin=0,sum_total=0;
    float average_q1, average_q2, average_mid,average_fin, average_total;
    char choice;
    struct record record;
do{
        printf("Enter thestudent's name: ");
        scanf("%s",record.name);
        read_line(record.name,MAX_NAME_LEN);
        printf("Enter thestudent's grade for quiz #1: ");
        scanf("%d",&record.quiz1);  
        printf("Enter thestudent's grade for quiz #2: ");
        scanf("%d",&record.quiz2);
        printf("Enter thestudent's grade for midterm: ");
        scanf("%d",&record.midterm);
        printf("Enter thestudent's grade for final: ");
        scanf("%d",&record.final);
        record.numeric =(((record.quiz1+record.quiz2) * 1.25)+(record.midterm *0.25)+(record.final * 0.50));
        printf("%s's numericscore for the entire course is %.2f ", record.name,record.numeric);
       //student[num_students++] = record;
        insert_rec(record);
        printf(" ");
        printf("Would you liketo enter another student record? y(yes) or n(no)?");
        scanf(" %c",&choice);
        count++;
//for(i = 0; i <MAX_STUDENT; i++)
        //{
           sum_q1 += record.quiz1;
           sum_q2 += record.quiz2;
           sum_mid += record.midterm;
           sum_fin += record.final;
           sum_total += record.numeric;
        //}
        average_q1 = (sum_q1 /count) / 100;
        average_q2 = (sum_q2 /count) / 100;
        average_mid = (sum_mid /count) / 100;
        average_fin = (sum_fin /count) / 100;
        average_total =(sum_total / count) / 100;
    }while(choice != 'n');
     
   printf(" Name       Quiz1       Quiz2       Midterm       Final        Total ");
   printf("----------------------------------------------------------------------- ");
   printf("           Quiz1       Quiz2       Midterm       Final        Total ");
   printf("----------------------------------------------------------------------- ");
    printf("Average %9.1f%9.1f%9.1f%9.0f%9.3f ",average_q1, average_q2, average_mid, average_fin,average_total);
    printf(" ");

   getchar();
    return 0;
}
   
int read_line(char str[], int n) //reads string into an array
{
int ch, i = 0;
while (isspace(ch = getchar()))
    ;
str[i++] = ch;
while ((ch = getchar()) != ' ') {
    if (i < n)
      str[i++] = ch;
}
str[i] = '';
return i;
}
void insert_rec(struct record record)
{
    new_record->next = first;
    first = new_record;
    first = NULL;
    new_record = malloc(sizeof(struct record));
    new_record->struct record;
}
void insert_rec(struct record record)
{
    new_record->next = first;
    first = new_record;
    first = NULL;
    new_record = malloc(sizeof(struct record));
    new_record->struct record;
}

Explanation / Answer

do{
        printf("Enter thestudent's name: ");
        scanf("%s",record.name);
        read_line(record.name,MAX_NAME_LEN);
        printf("Enter thestudent's grade for quiz #1: ");
        scanf("%d",&record.quiz1);  
        printf("Enter thestudent's grade for quiz #2: ");
        scanf("%d",&record.quiz2);
        printf("Enter thestudent's grade for midterm: ");
        scanf("%d",&record.midterm);
        printf("Enter thestudent's grade for final: ");
        scanf("%d",&record.final);
        record.numeric =(((record.quiz1+record.quiz2) * 1.25)+(record.midterm *0.25)+(record.final * 0.50));
        printf("%s's numericscore for the entire course is %.2f ", record.name,record.numeric);
       //student[num_students++] = record;
        insert_rec(record);
        printf(" ");
        printf("Would you liketo enter another student record? y(yes) or n(no)?");
        scanf(" %c",&choice);
        count++;
           }while(choice != 'n');
           
           
//for(i = 0; i < MAX_STUDENT; i++)
        //{
             ptr= first;
             while(ptr !=NULL)
             {
             record = *ptr;
           sum_q1 += record.quiz1;
           sum_q2 += record.quiz2;
           sum_mid += record.midterm;
           sum_fin += record.final;
           sum_total += record.numeric;
           ptr=ptr->next;
           }
        average_q1= (sum_q1 / count) / 100;
        average_q2 = (sum_q2 /count) / 100;
        average_mid = (sum_mid /count) / 100;
        average_fin = (sum_fin /count) / 100;
        average_total =(sum_total / count) / 100;

     
   printf(" Name       Quiz1       Quiz2       Midterm       Final        Total ");
   printf("----------------------------------------------------------------------- ");
   printf("           Quiz1       Quiz2       Midterm       Final        Total ");
   printf("----------------------------------------------------------------------- ");
    printf("Average %9.1f%9.1f%9.1f%9.0f%9.3f ",average_q1, average_q2, average_mid, average_fin,average_total);
    printf(" ");

   getchar();
    return 0;
}
   
int read_line(char str[], int n) //reads string into an array
{
int ch, i = 0;
while (isspace(ch = getchar()))
    ;
str[i++] = ch;
while ((ch = getchar()) != ' ') {
    if (i < n)
      str[i++] = ch;
}
str[i] = '';
return i;
}

voidinsert_rec(struct record rec)
{
   
    if(first ==NULL)
    {
    first=new_record =(struct record *)malloc(sizeof(struct record));
    *first = rec;
    first->next = NULL;
    }else
    {
    new_record =(struct record *)malloc(sizeof(struct record));
    *new_record = rec;
    new_record->next = first;
    first = new_record;
   }
}

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