Zip two linked lists

Interleave values from a and b until both are exhausted.

linked-list lists pointers

Implement `zip_lists(a: list, b: list) -> list` alternating values from `a` and `b`.

Constraints

0 ≤ list lengths ≤ 10_000 unless noted.

Example

>>> zip_lists(...)
# see tests

22 points ~20 min

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Hints

Work on paper with a tiny list first.

Match the function signature exactly.

Test Results

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