Answer: Python Puzzler #1676

The answer is D. The program prints:

2 4
What the program prints
Checked by running the program for real.

Why?

// divides and throws away the remainder: each friend gets 2 sweets. % gives the remainder: 4 sweets left over.

Trace table

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

sumanswer
18 // 72
18 % 74

The code again

sweets = 18
friends = 7
print(sweets // friends, sweets % friends)

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