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anketa.c

@@ -0,0 +1,78 @@
+#include "anketa.h"
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+
+int count_students(struct student* students){
+	int i;    	
+	for(i=0; i<MAXSTUDENTS; i++){
+		if(students[i].votes<=0){
+			break;
+			}
+	}
+return i;
+}
+
+int search(struct student* students,const char* name){
+	int a; 
+	for(int i=0; i<count_students(students); i++){
+		a=strcmp(students[i].name,name);
+		if(a==0){
+			return i;
+		}else{
+			continue;
+		}  
+	} 
+	return -1;
+}
+
+int add_student(struct student* students, const char* name, int votes){
+	int index=search(students,name),pocet=count_students(students);
+		if(index==-1&&pocet<MAXSTUDENTS){
+			strcpy(students[pocet].name,name);
+			students[pocet].votes=votes;
+			return pocet;
+		}else if(pocet<MAXSTUDENTS){
+			students[index].votes+=votes;
+			return index;
+		}
+	
+	
+
+ return -1;
+}
+
+int compare(const void* s1,const void* s2){
+      	struct student* stud1=(struct student*)s1;
+      	struct student* stud2=(struct student*)s2;
+	 if(stud1->votes==stud2->votes){
+		return 0;
+		}else if(stud1->votes<stud2->votes){
+		return 1;
+		}
+	return -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<count_students(students);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){
+	char meno[100];
+	int body,result;
+	while(fscanf(file,"%s",&meno[0])!=EOF){
+	fscanf(file,"%d",&body);
+	result= add_student(students,meno,body);
+	if(result==-1){
+		break;
+	}	
+	}
+}