Result

work.cpp

#include <iostream>
#include <string>
#include <vector>
#include <stdbool.h>

struct OrderInfo
{
    int price = 0;
    std::string customerName;
    std::string typeLine;
    std::string typeSoup;
    std::string typeMeat;
    std::string extra;
};

void Quest1()
{
    int width = 0;
    int length = 0;
    int area = 0;

    std::cout << "\nPlease enter width : ";
    std::cin >> width;

    std::cout << "\nPlease enter length : ";
    std::cin >> length;

    area = (length * width);
    std::cout << "Area is " << area << std::endl;
}

void Quest2()
{
    int radius = 0;
    float area = 0.0f;

    std::cout << "\nEnter radius: ";
    std::cin >> radius;

    area = 3.14f * (radius * radius);
    std::cout << "Area is : " << area << std::endl;
}

void Quest3()
{
    int totalCustomer = 0;
    int price = 0;
    bool isNeedExtra = false;

    std::vector<OrderInfo> playerOrderInfo;

    std::cout << "\nPlease enter total customer: ";
    std::cin >> totalCustomer;

    std::cout << "\nCustomer total cout : " << totalCustomer;

    for (unsigned int i = 0; i < totalCustomer; i++) {
        OrderInfo info;

        std::cout << "\nPlease enter customer name : ";
        std::cin >> info.customerName;

        std::cout << "\nSelect your type of line: ";
        std::cin >> info.typeLine;

        std::cout << "\nSelect your type of soup: ";
        std::cin >> info.typeSoup;

        std::cout << "\nSelect your type of meat: ";
        std::cin >> info.typeMeat;

        std::cout << "\nSelect extra or not (0 (No) / 1 (Yes)): ";
        std::cin >> isNeedExtra;

        if (isNeedExtra) {
            info.price = 40;
            info.extra = "Yes";
        } else {
            info.price = 35;
            info.extra = "No";
        }

        playerOrderInfo.push_back(info);
    }

    for (unsigned int i = 0; i < totalCustomer; i++) {
        OrderInfo info = playerOrderInfo[i];
        std::cout << "Customer Name : " << info.customerName << std::endl;
        std::cout << "Type of line : " << info.typeLine << std::endl;
        std::cout << "Type of soup : " << info.typeSoup << std::endl;
        std::cout << "Type of meat : " << info.typeMeat << std::endl;
        std::cout << "Total price : " << info.price << std::endl;
    }
}

int main()
{
    unsigned int questionNumber = 0;

    while (true) {

        std::cout << "Select the question number : ";
        std::cin >> questionNumber;

        switch (questionNumber) {
            case 1:
                Quest1();
                std::cout << "\nThanks for using us!!\n";
                break;

            case 2:
                Quest2();
                std::cout << "\nThanks for using us!!\n";
                break;

            case 3:
                Quest3();
                std::cout << "\nThanks for using us!!\n";
                break;

            default:
                std::cout << "There is no question at a select number\n";
                break;
        }
    }

    return 0;
}