jp switch

#include <iostream>

using namespace std;

int main()
{
    // Softdrinks
    int pepsi = 20;
    int coke = 25;

    // Bread
    int sandwich = 25;
    int bun = 20;

    // Snacks
    int oishi = 15;
    int pewee = 18;

    // User choices
    char category;
    string choice;

    // Money calculations variables
    int totalAmount;
    int payment;
    int change;

    cout << "Our menu:" << endl;
    cout << "A. Softdrinks (Pepsi = 20 ; Coke = 25)" << endl;
    cout << "B. Bread (Sandwich = 25 ; Bun = 20)" << endl;
    cout << "C. Snacks (Oishi = 15 ; Peewee = 18)" << endl;

    cout << "Choose category: ";
    cin >> category;
    cout << "Choose item: ";
    switch(category) {
        case 'A':
        case 'a':
            cin >> choice;

            if (choice == "Pepsi" || choice == "pepsi") {
                totalAmount = pepsi;
            } else if (choice == "Coke" || choice == "coke") {
                totalAmount = pepsi;
            }
            break;
        case 'B':
        case 'b':
            cin >> choice;

            if (choice == "Sandwich" || choice == "sandwich") {
                totalAmount = sandwich;
            } else if (choice == "Bun" || choice == "bun") {
                totalAmount = bun;
            }
            break;
        case 'C':
        case 'c':
            cin >> choice;

            if (choice == "Oishi" || choice == "oishi") {
                totalAmount = oishi;
            } else if (choice == "Peewee" || choice == "pewee") {
                totalAmount = pewee;
            }
    }

    cout << "Total amout is: " << totalAmount << endl;
    cout << "Your payment: ";
    cin >> payment;

    if (payment < totalAmount) {
        cout << "Payment insufficient" << endl;
    } else {
        change = payment - totalAmount;
        cout << "Here's your change: " << change << endl;
    }

    return 0;
}