The variable is being used without being initialized error C++ [duplicate]

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• Variable being used without being initialized 1 answer

I'm getting the error "The variable 'num1' is being used without being initialized". I understand what it means, but in this case, I can't figure out what I did wrong. Wouldn't "result=num1+num2" be initializing it?

Here's my code:

 #include <iostream> 
#include <string>
using namespace std;

int main()
{
    cout << "Hello user, what do you want to do:" << endl;
    cout << "A. Display a Message" << endl;
    cout << "B. Perform calculation" << endl;
    cout << "C. Exit the program" << endl;
    cout << "A, B, or C? ";
    string choice;
    cin >> choice;
    if (choice == "A")
    {
        cout << "Welcome to C++!" << endl;
    }
    else if (choice == "B")
    {
        int num1;
        int num2;
        int result;
        result = num1 + num2;
        cout << "Enter first number to calculate: ";
        cin >> num1;
        cout << "Enter second number to calculate: ";
        cin >> num2;
        cout << "The sum of " << num1 << " and " << num2 << " is " << result << endl;
    }
    return 0;
}