pvjc19cv5/anketa.c

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1.4 KiB
C
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2019-03-23 18:14:52 +00:00
#include "anketa.h"
#include <stdlib.h>
#include <string.h>
#include <assert.h>
int count_students(struct student* students){
int x=0;
for(int i=0; i<MAXSTUDENTS; i++){
if(students[i].name!=NULL){
x++;
}
}
return x;
}
int search(struct student* students,const char* name){
int index=-1;
for(int i=0; i<MAXSTUDENTS; i++){
if(strcmp(students[i].name,name)==0){
index=i;
break;
}
}
return index;
}
int add_student(struct student* students, const char* name, int votes){
int index=-1, x=0;
for(int i=0; i<MAXSTUDENTS; i++){
if(strcmp(students[i].name,name)==0){
index=i;
break;
}
if(students[i].name!=NULL){
x++;
}
}
if(index!=-1){
students[index].votes+=votes;
return index;
}
if(x<(MAXSTUDENTS-1)){
strcpy(students[x].name,name);
students[x].votes=votes;
return x;
}
return -1;
}
int compare(const void* s1,const void* s2){
struct student* stud1=(struct student*)s1;
struct student* stud2=(struct student*)s2;
return stud1->votes==stud2->votes?0:stud1->votes<stud2->votes?1:-1;
}
void sort_students(struct student* students){
qsort(students, count_students(students), sizeof(struct student), compare);
}
void print_students(struct student* students){
for(int i=0;i<MAXSTUDENTS;i++){
if(students[i].name!=NULL){
printf("%s\n %d\n", students[i].name, students[i].votes);
}
}
}
void read_students(FILE* file,struct student* students){
}