Question

Write a program to simulate a calculator. Generate two random numbers (between 1-15) and an ask the user for an arithmetic operator. Using a switch statement, your program has to perform the arithmetic operation on those two operands depending on what operator the user entered. Ask the user if he/she wants to repeat the calculations and if the answer is yes or YES, keep repeating. If the answer is something else, then stop after the first calculation. c++

Answer 1

#include <iostream>
#include <string>
#include <cstdlib>
#include <ctime>

using namespace std;

int main() {
    srand(time(NULL));
    string choice = "yes";
    char ch;
    int n1, n2;
    while (choice == "yes" || choice == "YES") {
        n1 = 1 + (rand() % 15);
        n2 = 1 + (rand() % 15);
        cout << "Enter operator(+ or - or * or /): ";
        cin >> ch;
        switch (ch) {
            case '+':
                cout << n1 << "+" << n2 << "=" << n1+n2 << endl;
                break;
            case '-':
                cout << n1 << "-" << n2 << "=" << n1-n2 << endl;
                break;
            case '*':
                cout << n1 << "*" << n2 << "=" << n1*n2 << endl;
                break;
            case '/':
                cout << n1 << "/" << n2 << "=" << n1/(double)n2 << endl;
                break;
            default:
                cout << "Invalid operator" << endl;
                break;
        }
        cout << "Do you want to try again(yes or YES or something else): ";
        cin >> choice;
    }
    return 0;
}