pvjc24/cv10/program.c

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

#define SIZE 100

int compare(const void* arg1, const void* arg2) {
    char* s1 = *((char**)arg1);
    char* s2 = *((char**)arg2);
    return strcmp(s1, s2);
}

int main() {
    char* pole_smernikov[SIZE];
    memset(pole_smernikov, 0, SIZE * sizeof(char*));
    int pocet_mien_v_poli = 0;

    char line[SIZE];
    while (fgets(line, SIZE, stdin) != NULL) {
        line[strcspn(line, "\n")] = 0;  // Remove the newline character
        int pocet_znakov = strlen(line) + 1;  // Include the null terminator
        if (pocet_znakov == 1)  // Skip empty lines
            continue;

        // Kontrola duplicít
        int found = 0;
        for (int i = 0; i < pocet_mien_v_poli; i++) {
            if (strcmp(pole_smernikov[i], line) == 0) {
                found = 1;
                break;
            }
        }
        if (!found) {
            pole_smernikov[pocet_mien_v_poli] = malloc(pocet_znakov);
            strcpy(pole_smernikov[pocet_mien_v_poli], line);
            pocet_mien_v_poli += 1;
        }
    }

    // Triedenie
    qsort(pole_smernikov, pocet_mien_v_poli, sizeof(char*), compare);

    // Výpis prijatých a neprijatých študentov
    int max_students;
    fgets(line, SIZE, stdin);
    sscanf(line, "%d", &max_students);

    printf("Prijati studenti:\n");
    for (int i = 0; i < max_students && i < pocet_mien_v_poli; i++) {
        printf("%s\n", pole_smernikov[i]);
    }

    printf("Neprijati studenti:\n");
    for (int i = max_students; i < pocet_mien_v_poli; i++) {
        printf("%s\n", pole_smernikov[i]);
    }

    // Uvoľnenie pamäte
    for (int i = 0; i < pocet_mien_v_poli; i++) {
        free(pole_smernikov[i]);
    }

    return 0;
}