Answer: Python Puzzler #1320

The answer is C. The program prints:

2 3

Checked by running the program for real.

// divides and throws away the remainder: each friend gets 2 sweets. % gives the remainder: 3 sweets left over.

A trace table follows the program step by step. Here’s this one:

sum	answer
17 // 7	2
17 % 7	3

sweets = 17
friends = 7
print(sweets // friends, sweets % friends)

Try it: change one number in the program and predict the new output before you run it.