Exercise: how many buses

Write a function buses_needed(people, capacity) that returns how many buses are needed to carry people people if a bus holds capacity people. The answer is a whole number of type int.

• buses_needed(90, 30) → 3
• buses_needed(100, 30) → 4
• buses_needed(0, 40) → 0

Constraints: people is an integer from 0 to 10000, and capacity is from 1 to 100. If there are no people, no buses are needed. The last check, type(got) is int, demands exactly the int type: the answer 100.0 does not pass it.

Do not add extra imports unless the task says so explicitly.