What is missing in this code?

Question

I'm trying to do Halloween Candy challenge but it always says there's problem after 3rd case. What am I missing?

houses = int(input())

if houses >=3:
print(round(2/houses*100))

Answer 1

Instead of round, you should use math.ceil

Answer 2

Maybe you forgot to import math

Answer 3

Some of the challenges require you to import library. Search for modules about math, date and datetime, it will come in handy.

Answer 4

Okay, thank you.
Edit: tried and it gave an error.

Answer 5

I don't know that, I'll check it 👍