Hi again.

Do all generated barcodes have the same number of digits?

answer: Yes

How to handle barcodes with many different digits?

answer: Barcodes can be 7 digits.

Do you need to define decoding?

answer: I only know whats explained in the assignment. But I know that the code is to be created just as explained step by step.

Have any questions, aspects, complexities, simplifications, etc. Is there anything else that I need to think about first?

answer: Please, read the project precisely and in detail.

Hi again.

Code has error at bottom also is missing 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.
 

Error after \n",  

    // print the barcode
    printf("Barcode: %s\n", barcode); error ,barcode?

Hello. 

If someone can provide step by step for me to transfer to a video.

I need to record a video, a maximum of 4 minutes. In this video, Ineed to explain the different parts of the code you have written, the functions, the pointers, memory allocation, memory management, and encryption methods, and if available the decryption methods must be explained verbally. The steps I'm taking in explaining your written code must follow the steps, line by line, of your main function. This video should clarify the approaches you have taken along with the fulfillment of the requirements of this project.

#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;
}

Hi. Was I supose to add the last code to the first? The output also show only this:

#include <stdio.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