30-seconds-of-code/snippets/python/s/is-contained-in.md

title, type, language, tags, cover, dateModified

title	type	language	tags	cover	dateModified
List is contained in other list	snippet	python	list	sunrise-over-mountains	2021-01-07T23:30:28+02:00

Checks if the elements of the first list are contained in the second one regardless of order.

• Use count() to check if any value in a has more occurrences than it has in b.
• Return False if any such value is found, True otherwise.

def is_contained_in(a, b):
  for v in set(a):
    if a.count(v) > b.count(v):
      return False
  return True

is_contained_in([1, 4], [2, 4, 1]) # True