Count nodes equal to target

Count how many times target appears in the list.

linked-list lists pointers

Implement `count_value(values: list, target) -> int` counting matching node payloads.

Constraints

0 ≤ list lengths ≤ 10_000 unless noted.

Example

>>> count_value(...)
# 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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