수다닷컴

/*
Filename : 4.c
Written by : 2006920017 KimJinSoo
Date : 2008.03.13
*/
#includestdio.h
#includestdlib.h
#includestring.h
//Global Declarations
typedef struct
{
char name[10];
int id;
int math;
int eng;
}STUDENT;
int binsearch(STUDENT *list, int search,int left, int right);
//main start
void main()
{
//Local Definitions
int n=10;//the numbers of all student loading from the data.txt
int i;
int search;//get search from the user console
int result;//get result from the binsearch()
float sum1=0,sum2=0;
STUDENT *pArray=(STUDENT*)calloc(n,sizeof(STUDENT));//pArray which has 5 Struct Person
//read the file
FILE *fp;//fp means filepointer
fp=fopen(data.txt,r);//r means read
if(fp==0)
{
printf(CANNOT OPEN THE FILE, CHEAK PLEASE);//exception handling
exit(0);
}
fscanf(fp,%d,&n);//The fist number means the struct PERSON Numbers
//the number of all students in the dataprintf(The Number of Student is %d \n,n);
for(i=0;in;i++)//load the data from the file
{
fscanf(fp,%s,&pArray[i].name);//fscanf take fp into variable.
fscanf(fp,%d,&pArray[i].id);
fscanf(fp,%d,&pArray[i].math);
fscanf(fp,%d,&pArray[i].eng);
}

for(i=0;in;i++)
{
fprintf(stdout,%s ,pArray[i].name);
fprintf(stdout,%d ,pArray[i].id);
fprintf(stdout,%d ,pArray[i].math);
fprintf(stdout,%d ,pArray[i].eng);
printf(\n);
}
printf(Input the name (ex)Ann \n : );
scanf(%s,&search);

result = binsearch(pArray,search,0,n-1);//binsearch()
printf(Name:%s\nStudentID:%d\nEnglish:%d\nMath:%d\n\n,
pArray[result].name, pArray[result].id, pArray[result].math, pArray[result].eng);

//close the file pointer
fclose(fp);
free(pArray);
}//main end
int binsearch(STUDENT *list,int search, int left, int right){
int middle=(left+right)/2;
if(left=right)
{
switch(strcmp(list[middle].name,list[search].name))
{
case -1 :return binsearch(list,search,middle+1,right);
case +1 : return binsearch(list,search,left,middle-1);
case 0 :return middle;
}
}
return -1;
}access error가 나는데, 구조체를 가리키는 포인터에 문제가 있는건지;-_-
제가 switch 안에를 1로 했을땐 됬는데,
문제는 strcmp인거 같아염;; 근데 왜 그런건지 모르겠음.ㅜㅠ

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