Simple Calculator

A command-line calculator that performs basic arithmetic operations.

cppCopy code#include <iostream>
using namespace std;

int main() {
char op;
float num1, num2;
cout &lt;&lt; "Enter operator (+, -, *, /): ";
cin &gt;&gt; op;
cout &lt;&lt; "Enter two numbers: ";
cin &gt;&gt; num1 &gt;&gt; num2;
switch(op) {
    case '+':
        cout &lt;&lt; num1 + num2;
        break;
    case '-':
        cout &lt;&lt; num1 - num2;
        break;
    case '*':
        cout &lt;&lt; num1 * num2;
        break;
    case '/':
        if (num2 != 0)
            cout &lt;&lt; num1 / num2;
        else
            cout &lt;&lt; "Division by zero!";
        break;
    default:
        cout &lt;&lt; "Invalid operator";
        break;
}
return 0;
}