usaa24/cv2/program.c

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

struct pizza
{
    char* name;
    float price;
};

int comparator(const void* a, const void* b)
{

    struct pizza A = *(struct pizza*)a;
    struct pizza B = *(struct pizza*)b;

    if (A.price < B.price)
    {
        return -1;
    }
    if (A.price == B.price)
    {
        return 0;
    }
    if (A.price > B.price)
    {
        return 1;
    }
}

int main(int argc, char const *argv[])
{
    int itemc = 0;
    char find[20];
    struct pizza menu[20];
    char buf[50];
    float price  = 0;
    memset(buf, 0, 50);
    memset(find, 0, 20);


    while (fgets(buf, 50, stdin) != NULL)
    {
        buf[strcspn(buf, "\n")] = '\0';

        if (scanf("%f", &price) != 1)
        {
            break;
        }

        getchar();

        struct pizza piteml = 
        {
            .name = (char*)malloc(strlen(buf) * sizeof(char*)),
            .price = price
        };

        strcpy(piteml.name,buf);

        menu[itemc] = piteml;
        
        itemc++;
        if (itemc >= 20)
        {
            break;
        }
    }

    qsort(menu, itemc, sizeof(struct pizza), comparator);

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

    for (int i = 0; i < itemc; i++)
    {
        free(menu[i].name);
    }
    return 0;
}