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calculator.cpp
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calculator.cpp
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// Problem: Create a calculator program in which the inputs are take by user.
#include <iostream>
using namespace std;
int main() {
int op;
float num1, num2;
while (true) {
cout << "Enter 1 for addition" << endl
<< "Enter 2 for subtraction" << endl
<< "Enter 3 for division" << endl
<< "Enter 4 for multiplication" << endl
<< "Enter 5 for percentage" << endl
<< "Enter 0 to exit" << endl
<< "Enter a number to perform a specific function: ";
cin >> op;
if (op == 0) {
cout << "Exiting the program..." << endl;
break;
}
if (op < 1 || op > 5) {
cout << "Invalid operation chosen!" << endl << endl;
continue;
}
cout << "Enter the first number: ";
cin >> num1;
cout << "Enter the second number: ";
cin >> num2;
switch (op) {
case 1:
cout << num1 << " + " << num2 << " = " << num1 + num2 << endl;
break;
case 2:
cout << num1 << " - " << num2 << " = " << num1 - num2 << endl;
break;
case 3:
if (num2 != 0) {
cout << num1 << " / " << num2 << " = " << num1 / num2 << endl;
} else {
cout << "Denominator cannot be zero!" << endl;
}
break;
case 4:
cout << num1 << " * " << num2 << " = " << num1 * num2 << endl;
break;
case 5:
if (num2 != 0) {
cout << num1 << " % " << num2 << " = " << (num1 / num2) * 100 << "%" << endl;
} else {
cout << "Denominator cannot be zero!" << endl;
}
break;
}
cout << endl;
}
return 0;
}