The answer is D. The program prints:
4 3
Why?
// divides and throws away the remainder: each friend gets 4 sweets. % gives the remainder: 3 sweets left over.
Trace table
A trace table follows the program step by step. Here’s this one:
| sum | answer |
|---|---|
| 31 // 7 | 4 |
| 31 % 7 | 3 |
The code again
sweets = 31
friends = 7
print(sweets // friends, sweets % friends)Try it: change one number in the program and predict the new output before you run it.