calculator with c++

                                    #include <iostream>

using namespace std;

int main()
{
int num1;
int num2;
char op;
  
  cout << "Enter a number:" << endl;
  cin >> num1; //takes input
  
  cout << "Enter another number:" << endl; //prints some prompt
  cin >> num2;
  
  cout << "Enter a operator:" << endl; //prints some prompt
  cin >> op;
  
  if(op == '+')
  {
  cout << "Result = " << num1 + num2 << endl;
  }else if(op == '-'){
  cout << "Result = " << num1 - num2 << endl;
  }else if(op == '*'){
  cout << "Result = " << num1 * num2 << endl;
  }else if(op == '/'){
  cout << "Result = " << num1 / num2 << endl;
  }
  
  
}

                                    #include <iostream>
using namespace std;

int main()
{
	int choice;

	cout << 1 << endl;
	cout << 2 << endl;
	cout << 3 << endl;
	cout << 4 << endl;

	cout << "Choice A Number: ";
	cin >> choice;

	if (choice >= 1 && choice <= 4)
	{
		int a, b;

		cout << "Enter Num One: ";
		cin >> a;
		cout << "Enter Num Two: ";
		cin >> b;

		if (choice == 1)
			cout << a << "+" << b << "=" << a + b << endl;
		if (choice == 2)
			cout << a << "-" << b << "=" << a - b << endl;
		if (choice == 3)
			cout << a << "*" << b << "=" << a * b << endl;
	}
	else
	{
		cout << "Wrong Choice" << endl;
	}
}