Here's the full code that has errors. Thx

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

typedef struct {
    char name[50];
    char category;
    char company[50];
    float purchased_price;
    float sale_price;
    int quantity;
    time_t purchased_date;
    time_t production_date;
    time_t expiry_date;
    int store_code;
    char currency[4];
    long barcode;
} Item;

typedef struct {
    time_t purchase_time;
    Item *items;
    int item_count;
} Receipt;

// Caesar cipher encryption
void encrypt_caesar_cipher(char *input, int key, char *output) {
    int i = 0;
    while (input[i] != '\0') {
        char c = input[i];
        if (isalpha(c)) {
            char base = isupper(c) ? 'A' : 'a';
            output[i] = (c - base + key) % 26 + base;
        } else {
            output[i] = c;
        }
        i++;
    }
    output[i] = '\0';
}

// Caesar cipher decryption
void decrypt_caesar_cipher(char *input, int key, char *output) {
    encrypt_caesar_cipher(input, 26 - key, output);
}
// Function to generate a random item
Item create_random_item() {
    Item item;
    int category_random = rand() % 12;

    // Assign random category
    if (category_random <= 3) {
        item.category = 'A';
    } else if (category_random <= 7) {
        item.category = 'B';
    } else if (category_random <= 10) {
        item.category = 'C';
    } else {
        item.category = 'D';
    }

    // Generate random values for item fields
    char *names[4] = {"apple", "banana", "chocolate", "water bottle"};
    strcpy(item.name, names[rand() % 4]);
    strcpy(item.company, "ABC Company");
    item.purchased_price = ((rand() % 100) + 1) / 10.0;
    item.sale_price = item.purchased_price;
    item.quantity = rand() % 10 + 1;
    item.purchased_date = time(NULL);
    item.production_date = item.purchased_date - (rand() % 60) * 24 * 60 * 60;  // 0-60 days before purchase
    item.expiry_date = item.production_date + (rand() % 180) * 24 * 60 * 60;  // 0-180 days after production
    item.store_code = rand() % 10000 + 1;
    strcpy(item.currency, "USD");
    item.barcode = generate_barcode(&item);

    return item;
}
// Define function to create a random item
Item create_random_item() {
    Item item;

    // Set a random item name
    char *names[] = {"Apple", "Banana", "Orange", "Pear", "Grapes", "Pineapple", "Watermelon", "Strawberry", "Mango", "Kiwi"};
    int name_index = rand() % 10;
    strcpy(item.name, names[name_index]);

    // Set a random item category
    char categories[] = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L'};
    int category_index = rand() % 12;
    item.category = categories[category_index];

    // Set a random item manufacturer
    char *manufacturers[] = {"Apple Inc.", "Samsung", "Microsoft", "Google", "Amazon", "Sony", "Nike", "Adidas", "Puma", "Reebok"};
    int manufacturer_index = rand() % 10;
    strcpy(item.manufacturer, manufacturers[manufacturer_index]);

    // Set a random purchased price
    item.purchased_price = (float) (rand() % 100 + 1);

    // Set a random sale price
    item.sale_price = item.purchased_price * (1.0 + ((float) (rand() % 20 + 1) / 100.0));

    // Set a random quantity
    item.quantity = rand() % 10 + 1;

    // Set a random purchased date
    item.purchased_date = time(NULL) - (rand() % (30 * 24 * 60 * 60)); // up to 30 days ago

    // Set a random production date
    item.production_date = time(NULL) - (rand() % (365 * 24 * 60 * 60)); // up to 1 year ago

    // Set a random expiry date (between 1 and 3 years from the production date)
    item.expiry_date = item.production_date + ((rand() % 730) + 365) * 24 * 60 * 60;

    // Set a random store code
    item.store_code = rand() % 10000;

    // Set a random currency
    char *currencies[] = {"USD", "EUR", "GBP", "JPY", "CAD", "AUD", "CHF", "CNY"};
    int currency_index = rand() % 8;
    strcpy(item.currency, currencies[currency_index]);

    // Set a random barcode
    item.barcode = generate_barcode(&item);

    return item;
}
void encrypt_caesar_cipher(char *input, int key, char *output) {
    int i = 0;
    while (input[i] != '\0') {
        char c = input[i];
        if (isalpha(c)) {
            char base = isupper(c) ? 'A' : 'a';
            output[i] = (c - base + key) % 26 + base;
        } else {
            output[i] = c;
        }
        i++;
    }
    output[i] = '\0';
}

unsigned long generate_barcode(Item *item) {
    // Encrypt the required fields
    char encrypted_name[100], encrypted_company[100];
    encrypt_caesar_cipher(item->name, 3, encrypted_name);
    encrypt_caesar_cipher(item->company, 3, encrypted_company);

    // Combine the encrypted information to generate a barcode (just as an example, not an actual barcode)
    unsigned long barcode = 0;
    for (int i = 0; encrypted_name[i] != '\0'; i++) {
        barcode += encrypted_name[i];
    }
    for (int i = 0; encrypted_company[i] != '\0'; i++) {
        barcode += encrypted_company[i];
    }

    return barcode;
}
void generate_receipt(Item* items, int num_items) {
    Receipt receipt;
    receipt.purchase_time = time(NULL);
    receipt.items = items;
    receipt.item_count = num_items;
    print_receipt(&receipt);
}
int main() {
    srand(time(NULL));
    int num_items = 5;
    Item items[num_items];
    for (int i = 0; i < num_items; i++) {
        items[i] = create_random_item();
        apply_discounts(&items[i], time(NULL));
    }
    generate_receipt(items, num_items);
    return 0;
}

Incomplete code:

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


// Define the encryption methods for each item category 

int encrypt_method[] = {1, 2, 1, 3, 3, 5, 5, 5, 6, 7, 7, 4};

// Define the durable life period for each item category in days 

int life_period[] = {20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130};

// Define the sale promotion percentage for each item category 

int promotion[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};

// Define the regular price for each item category 

float regular_price[] = {12.50, 10.20, 8.75, 6.99, 18.99, 15.55, 11.79, 9.99, 7.25, 5.49, 13.99, 23.99};

// Define the items bought by the customer 

int bought_items[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};

// Define the items returned by the customer 

int returned_items[] = {3, 7, 11};

int main() 
{
    char barcode[20]; 
    int i, j; 
    float price, sale_price, total_price = 0.0;

    // Generate barcodes for each item and print the receipt
    printf("Receipt:\n");

    for (i = 0; i < 12; i++) {
        // Encrypt the barcode using the appropriate encryption method
        switch (encrypt_method[i]) {
        case 1:
            sprintf(barcode, "ABC%d", bought_items[i]);
            break;
        case 2:
            sprintf(barcode, "DEF%d", bought_items[i]);
            break;
        case 3:
            sprintf(barcode, "GHI%d", bought_items[i]);
            break;
        case 4:
            sprintf(barcode, "JKL%d", bought_items[i]);
            break;
        case 5:
            sprintf(barcode, "MNO%d", bought_items[i]);
            break;
        case 6:
            sprintf(barcode, "PQR%d", bought_items[i]);
            break;
        case 7:
            sprintf(barcode, "STU%d", bought_items[i]);
            break;
        default:
            sprintf(barcode, "UNK%d", bought_items[i]);
            break;
        }

        // Calculate the sale price of the item based on the promotion percentage
        sale_price = regular_price[i] * (1 - promotion[i] / 100.0);

        // Check if the item was returned and adjust the total price accordingly
        for (j = 0; j < 3; j++) {
            if (returned_items[j] == bought_items[i]) {
                total_price -= sale_price;
                break;
            }
        }

        // Add the sale price of the item to the total price
        total_price += sale_price;

        // Print the barcode and sale price of the item
        printf("%s %.2f\n", barcode, sale_price);
    }

    // Print the total price of the items purchased
    printf("Total: %.2f\n", total_price);

   // Print the total price of the items bought
printf("Total price: $%.2f\n", total_price);

// Get user input for product information
char name[50];
char category;
char manufacturer[50];
float purchased_price;
 sale_price;
int quantity;
char purchase_date[11];
char production_date[11];
char expiry_date[11];
int store_code;
char currency[4];

printf("\nEnter the name of the product: ");
scanf("%s", name); 
printf("Enter the category: ");
scanf(" %c", &category);
printf("Enter the company/manufacturer name: ");
scanf("%s", manufacturer); 
printf("Enter the purchased price: ");
scanf("%f", &purchased_price);
printf("Enter the sale price: ");
scanf("%f", &sale_price);
printf("Enter the quantity of purchased items: ");
scanf("%d", &quantity);
printf("Enter the date of purchase (yyyy-mm-dd): ");
scanf("%s", purchase_date);
printf("Enter the date of production (yyyy-mm-dd): ");
scanf("%s", production_date);
printf("Enter the expiry date (yyyy-mm-dd): ");
scanf("%s", expiry_date);
printf("Enter the store code: ");
scanf("%d", &store_code);
printf("Enter the currency of the country: ");
scanf("%s", currency);

// Encrypt the necessary fields to generate the barcode

// Print the barcode
printf("Barcode: %s\n", barcode);

// Determine the discount and print the tag color
float discount_percentage = (1.0 - (sale_price/purchased_price)) * 100.0;

if (discount_percentage > 20) {
    printf("Tag color: Red\n");
} else if (discount_percentage > 10) {
    printf("Tag color: Yellow\n");
} else {
    printf("Tag color: Green\n");
}

return 0;
}

Hello. I appriciate ur help with this. Unfortunatly code did not work in my vs code. One of the libraries lastly listed #include <openssl/sha.h> is not existing. Also, the bottom of code there is info that iv never used in my class, not sure. // Define the struct for a category. struct Category  char name

#include <stdio.h>

#include <stdlib.h>

#include <string.h>

#include <time.h>

#include <openssl/sha.h>

// Define the maximum length of a string.

#define MAX_LENGTH 100

// Define the number of items in each category.

#define NUM_MEAT 2

#define NUM_DELI 2

#define NUM_PHARMACY 2

#define NUM_SEAFOOD 2

#define NUM_BEVERAGE 2

#define NUM_CANNED 2

#define NUM_JARRED 2

#define NUM_DRY_FOOD 2

#define NUM_DAIRY 2

#define NUM_BAKERY 2

#define NUM_PERSONAL_CARE 2

#define NUM_PAPER_GOODS 2

// Define the number of categories.

#define NUM_CATEGORIES 12

// Define the durable life period of each category.

#define DURABLE_LIFE_PERIOD_MEAT 5

#define DURABLE_LIFE_PERIOD_DELI 4

#define DURABLE_LIFE_PERIOD_PHARMACY 2

#define DURABLE_LIFE_PERIOD_SEAFOOD 3

#define DURABLE_LIFE_PERIOD_BEVERAGE 6

#define DURABLE_LIFE_PERIOD_CANNED 8

#define DURABLE_LIFE_PERIOD_JARRED 10

#define DURABLE_LIFE_PERIOD_DRY_FOOD 12

#define DURABLE_LIFE_PERIOD_DAIRY 7

#define DURABLE_LIFE_PERIOD_BAKERY 2

#define DURABLE_LIFE_PERIOD_PERSONAL_CARE 9

#define DURABLE_LIFE_PERIOD_PAPER_GOODS 14

// Define the encryption key for encryption method 1.

#define ENCRYPTION_KEY_1 "zyxwvutsrqponmlkjihgfedcba"

// Define the encryption key for encryption method 2.

#define ENCRYPTION_KEY_2 "nopqrstuvwxyzabcdefghijklm"

// Define the encryption key for encryption method 3.

#define ENCRYPTION_KEY_3 "plmoknijbuhvygctfxrdzeswaq"

// Define the encryption key for encryption method 5.

#define ENCRYPTION_KEY_5 "abcdefghijklmnopqrstuvwyxz"

// Define the encryption key for encryption method 6.

#define ENCRYPTION_KEY_6 "0123456789"

// Define the encryption key for encryption method 7.

#define ENCRYPTION_KEY_7 "USD"

// Define the number of digits for the barcode.

#define BARCODE_LENGTH 10

// Define the number of items in the store.

#define NUM_ITEMS (NUM_MEAT + NUM_DELI + NUM_PHARMACY + NUM_SEAFOOD + NUM_BEVERAGE + NUM_CANNED + NUM_JARRED + NUM_DRY_FOOD + NUM_DAIRY + NUM_BAKERY + NUM_PERSONAL_CARE + NUM_PAPER_GOODS)

// Define the struct for an item.

struct Item {

    char name[MAX_LENGTH];

    char category[MAX_LENGTH];

    char company[MAX_LENGTH];

    double purchased_price;

    double sale_price;

    int quantity;

    char date_purchased[MAX_LENGTH];

    char date_production[MAX_LENGTH];

    char expiry_date[MAX_LENGTH];

    int store_code;

    char currency[MAX_LENGTH];

    char barcode[BARCODE_LENGTH + 1];

};

// Define the struct for a category.

struct Category {

    char name

Hello. Please can anyone fix this C code to print correct output? Also, Iv added the assignment below code for instructions to compare.

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


// Define the encryption methods for each item category 

int encrypt_method[] = {1, 2, 1, 3, 3, 5, 5, 5, 6, 7, 7, 4};

// Define the durable life period for each item category in days 

int life_period[] = {20, 30, 40, 50, 60, 70, 80, 90, 100, 110, 120, 130};

// Define the sale promotion percentage for each item category 

int promotion[] = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};

// Define the regular price for each item category 

float regular_price[] = {12.50, 10.20, 8.75, 6.99, 18.99, 15.55, 11.79, 9.99, 7.25, 5.49, 13.99, 23.99};

// Define the items bought by the customer 

int bought_items[] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};

// Define the items returned by the customer 

int returned_items[] = {3, 7, 11};

int main(); 
{
    char barcode[20]; 
    int i, j; 
    float price, sale_price, total_price = 0.0;

    // Generate barcodes for each item and print the receipt
    printf("Receipt:\n");

    for (i = 0; i < 12; i++) {
        // Encrypt the barcode using the appropriate encryption method
        switch (encrypt_method[i]) {
        case 1:
            sprintf(barcode, "ABC%d", bought_items[i]);
            break;
        case 2:
            sprintf(barcode, "DEF%d", bought_items[i]);
            break;
        case 3:
            sprintf(barcode, "GHI%d", bought_items[i]);
            break;
        case 4:
            sprintf(barcode, "JKL%d", bought_items[i]);
            break;
        case 5:
            sprintf(barcode, "MNO%d", bought_items[i]);
            break;
        case 6:
            sprintf(barcode, "PQR%d", bought_items[i]);
            break;
        case 7:
            sprintf(barcode, "STU%d", bought_items[i]);
            break;
        default:
            sprintf(barcode, "VWX%d", bought_items[i]);
            break;
        }

        // Calculate the price of the item, including any promotions
        price = regular_price[i];
        if (promotion[i] > 0) {
            sale_price = price * (1.0 - (float)promotion[i] / 100.0);
            price = sale_price;
        }

        // Check if the item was returned and adjust the total price accordingly
        for (j = 0; j < 3; j++) {
            if (returned_items[j] == bought_items[i]) {
                price = 0.0;
            }
        }

        // Print the item details and update the total price
        printf("%s - $%.2f\n", barcode, price);
        total_price += price;
    }

    // Print the total price of the items bought
    printf("Total price: $%.2f\n", total_price);

    return

        int main() {
        // define variables for input
        char name[50];
        char category;
        char manufacturer[50];
        float purchased_price;
        float sale_price;
        int quantity;
        char purchase_date[11]; // assuming format yyyy-mm-dd
        char production_date[11]; // assuming format yyyy-mm-dd
        char expiry_date[11]; // assuming format yyyy-mm-dd
        int store_code;
        char currency[4];

        // collect input from user

        printf("Enter the name of the product: ");
        scanf_s("%s", name);
        printf("Enter the category: ");
        scanf_s(" %c", &category);
        printf("Enter the company/manufacturer name: ");
        scanf_s("%s", manufacturer);
        printf("Enter the purchased price: ");
        scanf_s("%f", &purchased_price);
        printf("Enter the sale price: ");
        scanf_s("%f", &sale_price);
        printf("Enter the quantity of purchased items: ");
        scanf_s("%d", &quantity);
        printf("Enter the date of purchase (yyyy-mm-dd): ");
        scanf_s("%s", purchase_date);
        printf("Enter the date of production (yyyy-mm-dd): ");
        scanf_s("%s", production_date);
        printf("Enter the expiry date (yyyy-mm-dd): ");
        scanf_s("%s", expiry_date);
        printf("Enter the store code: ");
        scanf_s("%d", &store_code);
        printf("Enter the currency of the country: ");
        scanf_s("%s", currency);

        // encrypt the necessary fields to generate the barcode

        // print the barcode
        printf("Barcode: %s\n", barcode);
        // determine the discount and print the tag color
    }

Instructions:

In this activity, you are designing an application for grocery stores and their inventories.

The items depending on their type are divided into the following categories:

Group A: Meat

Group B: Deli

Group C: Pharmacy

Group D: Seafood

Group E: Beverage

Group F: Canned

Group G: Jarred

Group H: Dry Food

Group I: Dairy

Group J: Bakery

Group K: Personal Care

Group L: Paper Goods

Your store must have at least 3 items in each category.

Your application as the first step needs to collect the following information before importing the items to the store:

1. The name of the product

2. The Category

3. The Company/Manufacturer name

4. The purchased price (What company has paid to buy this product)

5. The sale price (What customers will pay to buy this product)

6. The quantity of the purchased items

7. The date of the purchased items

8. The date of the production

9. The expiry date of the product

10. Store Code (a 4-digit number)

11. The currency of the country


12. Items will go on sale on different dates depending on their categories.

Your application is responsible to use encryption method 1 for #1, and #3. (You have to define the suitable encryption method.)

Your application is responsible to use encryption method 2 for #2. (You have to define the suitable encryption method.)

Your application is responsible to use encryption method 3 for #4, and #5. (You have to define the suitable encryption method.)

Your application is responsible to use encryption method 4 for #6. (You have to define the suitable encryption method.)

Your application is responsible to use encryption method 5 for #7, #8, and #9. (You have to define the suitable encryption method.)

Your application is responsible to use encryption method 6 for #10. (You have to define the suitable encryption method.)

Your application is responsible to use encryption method 7 for #11. (You have to define the suitable encryption method.)


The output of the encryptions will generate a number that will be known as the barcode of that specific item in this store.

Before selecting and implementing your encryption methods, you have to answer the following questions:

- Will all the generated barcodes have the same number of digits?

- How should we deal with barcodes that have different numbers of digits?

- Do you need to define decryption?

- Is there any other questions, aspects, complications, simplifications, etc. that I need to think about in advance?

Items will go on sale on different dates depending on their categories.

Group A, B, C, and D follow the following rules:

- Items will go on a 10% promotion when the date passes 50% of the durable life period - Yellow Tag

- Items will go on a 25% promotion when the date passes 65% of the durable life period - Green Tag

- Items will go on a 50% promotion when the date passes 75% of the durable life period - Red Tag

- Items will go on a 95% promotion when the date passes 95% of the durable life period - Star Tag and Final Sale (Bring Me Home Today!)

- Items with less than one day of their durable life period must be removed from the shelves and storage to be removed from the inventory

Group E, F, G, and H follow the following rules:

- Items will go on a 10% promotion when the date passes 60% of the durable life period - Yellow Tag

- Items will go on a 25% promotion when the date passes 70% of the durable life period - Green Tag

- Items will go on a 50% promotion when the date passes 80% of the durable life period - Red Tag

- Items will go on a 95% promotion when the date passes 95% of the durable life period - Star Tag and Final Sale (Bring Me Home Today!)

- Items with less than one day of their durable life period must be removed from the shelves and storage to be removed from the inventory


Groups I, J, and K follow the following rules:

- Items will go on a 10% promotion when the date passes 40% of the durable life period - Yellow Tag

- Items will go on a 25% promotion when the date passes 50% of the durable life period - Green Tag

- Items will go on a 50% promotion when the date passes 60% of the durable life period - Red Tag

- Items will go on a 95% promotion when the date passes 95% of the durable life period - Star Tag (Bring Me Home Today!)

- Items with less than one day of their durable life period must be removed from the shelves and storage to be removed from the inventory

Group L follows the following rules:

- Items will go on a 10% promotion when the date passes 70% of the durable life period - Yellow Tag

- Items will go on a 25% promotion when the date passes 80% of the durable life period - Green Tag

- Items will go on a 50% promotion when the date passes 90% of the durable life period - Red Tag

- Items will go on a 95% promotion when the date passes 95% of the durable life period - Star Tag and Final Sale (Bring Me Home Today!)

- Items with less than one day of their durable life period must be removed from the shelves and storage to be removed from the inventory

The output of your program will be a printed receipt that shows a list of 12 items (one item from each category), 8 items with the regular price, and 4 items on sale that a customer bought also the customer has 3 items to return from three different categories.

A receipt needs to include the following information on it:

- The price of each item that has a regular price

- If the price is reduced the reduction amount and sales percentage will be printed on the lines below the regular price; therefore the customer will see the regular price, the sales price, the reduced amount, and the sales percentage

- Each item has a unique barcode
- The date and the time of the purchase
- The store number along with the address of the store
- The final Balance
- The payment method

As per our discussion in class, your code needs to ask the following question from the user at the very beginning:
"Would you like to import any item to your store?"
The answer to this question is YES/NO.
If YES, there will be 12 steps to collect the information related to that specific item being imported to the store to fill in and then, the program will proceed with the following steps.
If No, 30 items (3*10, 3 items in each category) have already existed in our store and the program will proceed with the following steps.

Memory management, allocating, and deallocating memory are one of the most important aspects to be considered in this project.

Regarding the promotions tags available in different colors, your application must be able to generate a list of items with the proper color of the tag that depends on the percentage of the promotion.