Programming asigment Exercise 5

I submit my programming assigment , and when I tested , it results all tests pass. but I did not get the degree . beside it said you write 3 and expected 2, but in the assigment the expected number is 3

To get the certificate you need purchase the course and complete all the assignments

The tests in the notebook do not prove your code is perfect.
The grader tests your code using different sets of data and conditions.
Your code must work for the grader’s data as well.