Question at position 1 What will be the output of the following code? [1, 2, 3, 4, 5][1, 3, 5][2, 4][True, False, True, False, True]Clear my selection

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Question at position 1 What will be the output of the following code? [1, 2, 3, 4, 5][1, 3, 5][2, 4][True, False, True, False, True]Clear my selection

BlackTom AI · Accepted Answer

We start by understanding the code snippet step by step.

- numbers is a list: [1, 2, 3, 4, 5].
- The filter function is used with a lambda: lambda x: x % 2 == 0. This lambda returns True for even numbers and False for odd numbers.
- filter(...) applies this lambda to each element of numbers, selecting only those elements for which the lambda returns True.
- The list(...) call converts the filter object (an iterator in Python 3) into a list containing the filtered elements.

Now, evaluate each answer option against what the code actually produces:

Option 1: [1, 2, 3, 4, 5]
- This is the original list, not the result after filtering. Since the filter keeps only even numbers, this option is not matching the operation.

Option 2: [1, 3, 5]
- These are the odd numbers from the original list. The lambda condition checks for evenness (x % 2 == 0), so odd numbers fail the condition and should not appear in the result. This option does not align with the filter’s condition.

Option 3: [2, 4]
- These are the even numbers in the original list, which satisfy the lambda condition. Given the filter and list conversion, this is the expected subset of numbers that pass the test.

Option 4: [True, False, True, False, True]
- This would be a list of booleans corresponding to whether each element meets some condition, not the actual elements themselves. The code returns the original elements that pass the condition, not a parallel boolean mask, so this option misinterprets the effect of filter and list.

In summary, the third option is consistent with how filter and the lambda condition operate on the given list, while the other options reflect common misinterpretations of filtering behavior or the output type.

Question at position 1 What will be the output of the following code? [1, 2, 3, 4, 5][1, 3, 5][2, 4][True, False, True, False, True]Clear my selection

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