Answer:
There are no null pointers.
Explanation:
Each element in a circular linked list points to exactly one other element, thus closing the loop and making it "circular".
Answer:
1. Your program starts by asking for input, so you would need to type "yes" to begin. If you change your first
again = input()
line to
again = "yes"
then the while loop will start.
2. Your functions like add(), sub(), etc are defined to expect two parameters (num1, num2) but in your line that's adding correct_answers, you're calling them with no parameters. Since your functions are setting the values themselves, you can remove the parameters from the function definitions.
Explanation:
?? You wantYou nethe president of US?
The answer is Average I think, it’s not sum.
Another important advantage would be that the information you stored is portable and you may thus carry the CD right inside your pocket. Whenever you need it, you can retrieve it in a minute.