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#include <stdio.h>
#include <string.h>
#include <stdlib.h>

struct student 
{   
  char name[50]; 
  int num; 
  int room; 
};

void NameSearch() 
{   
    FILE * f; 
    student stu[100]; 
    if((f=fopen("namesort.txt","rb"))==NULL) 
    { 
          printf("cannot open namesort.txt file!"); 
    } 
          fread(&stu,sizeof(struct student),1,f); 
  printf("%s",stu[0].num);
     

    fclose(f); 
}

int main(void)
{
    NameSearch();
}

namesort.txt£º
------------------------------
name1
num1
room1
name2
num2
room2
.
.
-----------------------------
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---

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C/C++ code:

int i=0;
while(!feof(f))
{
fread(&stu[i++],siz