front_11

Given 2 int lists, a and b, of any length, return a new list with the first element of each list. If either list is length 0, ignore that list.

front_11([1, 2, 3], [7, 9, 8]) -> [1, 7]
front_11([1], [2]) -> [1, 2]
front_11([1, 7], []) -> [1]

This exercise was taken from codingbat.com and has been adapted for the Python language. There are many great programming exercises there, but the majority are created for Java.

Starter Code

from typing import List


def front_11(a: List[int], b: List[int]) -> List[int]:
    pass


result = front_11([1, 2, 3], [7, 9, 8])
print(result)

Tests

from main import front_11


def test_front_11_1():
    assert front_11([1, 2, 3], [7, 9, 8]) == [1, 7]


def test_front_11_2():
    assert front_11([1], [2]) == [1, 2]


def test_front_11_3():
    assert front_11([1, 7], []) == [1]


def test_front_11_4():
    assert front_11([], [2, 8]) == [2]


def test_front_11_5():
    assert front_11([], []) == []


def test_front_11_6():
    assert front_11([3], [1, 4, 1, 9]) == [3, 1]


def test_front_11_7():
    assert front_11([1, 4, 1, 9], []) == [1]