pvjc24/cv5/program.c

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

#define MAX_STUDENTS 100
#define MAX_NAME_LENGTH 50

struct Student {
    char name[MAX_NAME_LENGTH];
    int votes;
};

int read_students(struct Student students[], int max_students) {
    int count = 0;
    while (count < max_students) {
        int votes;
        char name[MAX_NAME_LENGTH];
        if (scanf("%d %[^\n]", &votes, name) != 2) {
            break; // Koniec vstupu alebo chyba
        }
        strcpy(students[count].name, name);
        students[count].votes = votes;
        count++;
        // Zbavíme sa koncového znaku nového riadku z bufferu vstupu
        getchar();
    }
    return count;
}

int compare(const void *p1, const void *p2) {
    struct Student *s1 = (struct Student *)p1;
    struct Student *s2 = (struct Student *)p2;
    // Porovnanie podľa počtu hlasov, v prípade rovnakého počtu podľa mena
    if (s1->votes != s2->votes) {
        return s2->votes - s1->votes;
    } else {
        return strcmp(s1->name, s2->name);
    }
}

int main() {
    struct Student students[MAX_STUDENTS];
    int count = read_students(students, MAX_STUDENTS);

    if (count == 0) {
        printf("Chyba: Nepodarilo sa načítať žiadne dáta.\n");
        return 1;
    }

    // Triedenie študentov
    qsort(students, count, sizeof(struct Student), compare);

    // Výpis výsledkov
    printf("Vysledky:\n");
    for (int i = 0; i < count; i++) {
        printf("%d %s\n", students[i].votes, students[i].name);
    }

    return 0;
}