Predict the output of the following code:
Answer by student
The output of the code is:
Detailed answer by teachoo
- The code defines a function named Changer that takes two parameters P and Q , where Q has a default value of 10 . The function performs the following operations:
- It divides P by Q and assigns the result to P .
- It returns the remainder of P divided by Q and assigns it to Q .
- It returns P from the function.
- The code assigns 200 to A and 20 to B , and then calls the Changer function with A and B as arguments. The function returns 10.0 and assigns it to A. Then it prints A and B separated by a dollar sign ($), which is 10.0$20.
- The code calls the Changer function with B as the only argument. The function takes 10 as the default value for Q, and returns 10.0 and assigns it to B. Then it prints A and B separated by a dollar sign ($) followed by three hashes (###), which is 10.0$2.0###.
The reason why the output has decimal values is because of the type conversion that happens when dividing two integers in Python. In Python 3, the division operator (/) always returns a float value, even if the operands are integers. For example, 200/20 returns 10.0, not 10. A float value is a decimal number that can have fractional parts, such as 10.0, 0.5, 3.14, etc.
So, the correct answer is: