usaa24/cv2/program.c

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

#define MAX_PIZZAS 100
#define MAX_NAME_LENGTH 101

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


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


    if (pizzaA->price != pizzaB->price) {
        return (pizzaA->price < pizzaB->price) ? -1 : 1;
    }


    return strcasecmp(pizzaA->name, pizzaB->name);
}


int readPizza(Pizza *pizza) {
    if (!fgets(pizza->name, sizeof(pizza->name), stdin)) return 0;
    pizza->name[strcspn(pizza->name, "\n")] = 0; 

    char priceStr[10];
    if (!fgets(priceStr, sizeof(priceStr), stdin)) return 0;
    priceStr[strcspn(priceStr, "\n")] = 0; 

    char *endptr;
    pizza->price = strtod(priceStr, &endptr);
    return *endptr == '\0'; 
}

int main() {
    Pizza menu[MAX_PIZZAS];
    int count = 0;

    while (count < MAX_PIZZAS) {
        if (!readPizza(&menu[count])) break; 
        count++;
    }

   
    qsort(menu, count, sizeof(Pizza), compare);


    for (int i = 0; i < count; i++) {
        printf("%s\n%.6f\n", menu[i].name, menu[i].price);
    }

    return 0;
}