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28 Converts a multi-nested list to a single-dimensional list #61

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Merged
ZelenyMartin merged 1 commit into from
Apr 28, 2025
Merged

28 Converts a multi-nested list to a single-dimensional list #61

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10 changes: 8 additions & 2 deletions 06/tasks/task_28_flatten_list.py
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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,13 @@

def flatten_list(nested: list[list[int]]) -> list[int]:
"""
Převede dvourozměrný seznam na jednorozměrný.
Converts a multi-nested list to a single-dimensional list.
"""
flat_list = []
for item in nested:
if isinstance(item, list):
flat_list.extend(flatten_list(item))
else:
flat_list.append(item)

return [digit for sublist in nested for digit in sublist]
return flat_list
4 changes: 4 additions & 0 deletions 06/test_28_flatten_list.py
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Expand Up @@ -12,4 +12,8 @@ def test_flatten_list():
assert flatten_list([[0], [0, 0]]) == [0, 0, 0]
assert flatten_list([[10, 20], [30], [], [40, 50, 60]]) == [10, 20, 30, 40, 50, 60]
assert flatten_list([[1], [], [], [], [2]]) == [1, 2]
assert flatten_list([[[1]], 2, [3, [4]]]) == [1, 2, 3, 4]
assert flatten_list([0, [0, [0]]]) == [0, 0, 0]
assert flatten_list([10, [20, [30, [40]]]]) == [10, 20, 30, 40]
assert flatten_list([1, [2], 3, [4, [5, [6]]]]) == [1, 2, 3, 4, 5, 6]