usaa24/cv2/program.c

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

#define MAX_NAME_LENGTH 100
#define MAX_ITEMS 100

typedef struct {
    char name[MAX_NAME_LENGTH];
    float price;
} Pizza;

int compare(const void *a, const void *b) {
    Pizza *pizzaA = (Pizza *)a;
    Pizza *pizzaB = (Pizza *)b;

    if (pizzaA->price != pizzaB->price) {
        return (pizzaA->price > pizzaB->price) - (pizzaA->price < pizzaB->price);
    }
    return strcasecmp(pizzaA->name, pizzaB->name);
}

int read_pizza_list(Pizza *menu) {
    int count = 0;
    char input[MAX_NAME_LENGTH];
    
    // Nacitame pizza
    while (count < MAX_ITEMS && fgets(input, sizeof(input), stdin)) {
        input[strcspn(input, "\n")] = 0; // Odstran znak noveho riadku
        
        // Nacitame cenu pizze
        char price_str[10];
        if (fgets(price_str, sizeof(price_str), stdin) == NULL) {
            break;
        }
        
        float price = atof(price_str);
        if (price <= 0) {
            break;
        }
        
        strncpy(menu[count].name, input, MAX_NAME_LENGTH - 1);
        menu[count].price = price;
        count++;
    }
    return count;
}

int main() {
    Pizza menu[MAX_ITEMS];
    
    int item_count = read_pizza_list(menu);
    
    qsort(menu, item_count, sizeof(Pizza), compare);
    
    for (int i = 0; i < item_count; i++) {
        printf("%s\n%.6f\n", menu[i].name, menu[i].price);
    }
    
    return 0;
}