Python Question / Quiz; What is the output of the following Python code, and why? Comment your answers below!
Answer: B) [4, 16] It's like ordinary loop with body: › if x % 2 == 0 — filters for even numbers › x ** 2 squares them and appends to list For beginners: List comprehensions = loops in one line! So common in Python, you'll see them everywhere.
![kotov_dev's tweet image. Answer: B) [4, 16]
It's like ordinary loop with body:
› if x % 2 == 0 — filters for even numbers
› x ** 2 squares them and appends to list
For beginners: List comprehensions = loops in one line! So common in Python, you'll see them everywhere.](https://pbs.twimg.com/media/G3C0bpTXgAAnphy.jpg)
Answer: (B) [4, 16] The code snippet uses a list comprehension to create a new list named result. The code iterates through the nums list, which is [1, 2, 3, 4].The if x % 2 == 0 condition filters the elements, keeping only the numbers that are even. The even
Interesting! Ok this the loop for! So B) [4, 16] why? Because •x % 2 == 0 filters only even numbers from the list [1, 2, 3, 4]. That leaves us with 2 and 4. Then x**2 squares each of them → 2**2 = 4 and 4**2 = 16. So the final result is: [4, 16]
Correct answer: B) [4, 16] Because: We are using a list comprehension (fancy name for a one-liner loop). It grabs numbers from the original list nums, but only the even ones. So from [1, 2, 3, 4], the even numbers are 2 and 4. Then we square them 2 ** 2 = 4 and 4 ** 2 = 16.
B=[4,16] Because it will square all the numbers i.e the x**2 command and return only even numbers i.e the command x%2==0
clc; clear; nums = [1, 2, 3, 4]; result = []; for countNum = 1 : 1 : length(nums) if mod(countNum, 2) == 0 result = [result, nums[countNum]^2]; end end disp(result); Option B is right ans.
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