수다닷컴

질문 제목 :
파일이용해서 성적처리프로그램만들었는데 마지막에 오류떠서안되네요.

파일+동적메모리할당+구조체+함수이용해서 성적처리프로그램만들었는데 마지막출력에서 빨간줄쳐지고 정의되지않았다고오류가뜹니다.

질문 내용 :
#include stdio.h
#include stdlib.h
void input(struct student a[],int *number);
void process(struct student a[],int number,double *sum_math, double *sum_english, double *sum_kor,double *average_math, double *average_kor,double *average_english);
void show(struct student a[],double sum_math, double sum_english, double sum_kor,double average_math, double average_kor,int number );

typedef struct student {
char name[20];
int num;
int kor, eng, math, tot;
double avg;

}stu;

void main(void)
{
file *fp;
stu *a ;
int number;
double sum_math;
double sum_english;
double sum_kor;
double average_math;
double average_english;
double average_kor;
char fname[100];

printf(성적 파일 이름을 입력하시오:\n);
scanf(%s,fname);
fp=fopen(fname,w);
if(fp==null)
printf(파일열기실패);
else
printf(파일열기성공);
input(a,&number);
process( a,number,&sum_math, &sum_english, &sum_kor,&average_math,&average_kor,&average_english);
show( a,sum_math,sum_english,sum_kor,average_math,average_kor,number);
fclose(fp);
free(a);
}
void input(struct student a[],int *number)
{
int i;

printf(몇명의 학생을 입력하시겠습니까?: );
scanf(%d,number);
a = (stu*)malloc(sizeof(stu)*(*number));
if(a==null){
printf(메모리가 부족합니다.);
exit(0);
}
for(i = 0;i *number;i++)
{
printf(%d번째 학생의 이름: , i + 1);
scanf(%s, &a[i].name);
printf(%d번째 사람의 학번: , i + 1);
scanf(%d, &a[i].num);
printf(%d번째 사람의 국어점수: , i + 1);
scanf(%d, &a[i].kor);
printf(%d번째 사람의 영어점수: , i + 1);
scanf(%d, &a[i].eng);
printf(%d번째 사람의 수학점수: , i + 1);
scanf(%d, &a[i].math);

}
}
void process(struct student a[],int number,double *sum_math, double *sum_english, double *sum_kor,double *average_math, double *average_kor,double *average_english)
{
int i;
*sum_math=0;
*sum_english=0;
*sum_kor=0;for(i=0;inumber;i++){
a[i].tot=a[i].math+a[i].eng+a[i].kor;
a[i].avg=a[i].tot/number;
*sum_math=*sum_math+a[i].math;
*sum_english=*sum_english+a[i].eng;
*sum_kor=*sum_kor+a[i].kor;
}

*average_math=*sum_math/number;
*average_english=*sum_english/number;
*average_kor=*sum_kor/number;
}
void show(struct student a[],double sum_math, double sum_english, double sum_kor,double average_math, double average_kor,double average_englsih,int number)
{
int i;
fputs(i학번i\t\t\t\ti이름i\tic언어i\ti수학i\ti영어i\ti총점ii\ti평균i\n,fp);

for(i=0;inumber;i++){
fprintf(fp,%d\t\t%s\t%d\t%d\t%d\t%d\t%.1lf%.1lf\n,a[i].num,a[i].name,a[i].kor,a[i].math,a[i].eng,a[i].tot,a[i].avg);
}

}여기서 저기 fputs에서 빨간색글자에,정의되지않았다고안됩니다..도와주세요

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