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

#define MAXS 21

typedef struct{
	char prezime[MAXS];
	int prosek;
} student;

int poredistudente(const void *a, const void *b){
	return strcmp(((student*)a)->prezime,((student*)b)->prezime);
}

int main(){
	FILE *f;
	int n,i;
	student *s;
	student trazeni;
	student *pronadjeni;
	f = fopen("studenti.txt","r");

	if(f==NULL)
		exit(EXIT_FAILURE);

	fscanf(f,"%d",&n);

	s=(student*)malloc(sizeof(student)*n);
	if(s==NULL)
		exit(EXIT_FAILURE);

	for(i=0; i<n; i++)
		fscanf(f,"%s %d",s[i].prezime, &(s[i].prosek));
	
	printf("Uneti studenti su:\n");
	for(i=0; i<n; i++)
		printf("%s %d\n",s[i].prezime, s[i].prosek);
	
	printf("Trazeni student je: ");
	scanf("%s",trazeni.prezime);	

	pronadjeni = bsearch(&trazeni,s,n,sizeof(student),poredistudente);
	printf("Prosecna ocena je %d\n",pronadjeni->prosek);

	fclose(f);
	free(s);
	return 0;
}