Embercode: AI-powered software engineer course

1. Which front follows the lesson's rule for a flashcard question?

Explain how the terminal works.Is ls -a useful?What does a lone -- do in a command?Read the section on flags.

2. What is the last line this program prints? ``

python
def next_interval(interval, rating):
    if rating == 'again':
        return 1
    if rating == 'hard':
        return max(1, round(interval * 1.2))
    if rating == 'good':
        return max(1, interval * 2)
    return max(1, interval * 3)


gap = 4
for r in ['hard', 'good', 'again']:
    gap = next_interval(gap, r)
    print(r, gap)

``

again 1again 4good 10hard 5

3. True or false: a card you could answer only after reading its back should be rated Easy, because you did recognise it.

True, because any card you finish in one review is an EasyFalse, because you looked before you tested your memory, so the honest rating is AgainTrue, because recognising the answer on the back shows that you know itFalse, because Easy is only allowed on cards from the first lesson

4. Spot the bug in this test. Which statement is right? ``

python
import unittest
from leap import is_leap_year


class TestLeap(unittest.TestCase):
    def test_1900_is_not_leap(self):
        try:
            self.assertFalse(is_leap_year(1900))
        except AssertionError:
            pass

``

The method name must start with check_, not test_The assertFalse line is wrong, because 1900 is a leap yearThe except block catches the AssertionError and does nothing, so the test passes whatever the function returnsThe import should be written as from leap import leap

5. What does this program print for the year 1900? ``

python
def is_leap_year(year):
    return year % 4 == 0


for y in [1900, 2000, 2023, 2024]:
    print(y, is_leap_year(y))

``

1900 False1900 is not a leap year1900 None1900 True

Flashcards and testing AI code