25 lines
578 B
Markdown
25 lines
578 B
Markdown
---
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title: List is contained in other list
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tags: list
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expertise: intermediate
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firstSeen: 2020-03-16T19:48:15+02:00
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lastUpdated: 2021-01-07T23:30:28+02:00
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---
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Checks if the elements of the first list are contained in the second one regardless of order.
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- Use `count()` to check if any value in `a` has more occurrences than it has in `b`.
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- Return `False` if any such value is found, `True` otherwise.
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```py
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def is_contained_in(a, b):
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for v in set(a):
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if a.count(v) > b.count(v):
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return False
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return True
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```
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```py
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is_contained_in([1, 4], [2, 4, 1]) # True
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```
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