Python: Common elements in a given list of lists
Python List: Exercise - 177 with Solution
Write a Python program to find common elements in a given list of lists.
Sample Solution:
Python Code:
def common_list_of_lists(lst):
temp = set(lst[0]).intersection(*lst)
return list(temp)
nums = [[7,2,3,4,7],[9,2,3,2,5],[8,2,3,4,4]]
print("Original list:")
print(nums)
print("\nCommon elements of the said list of lists:")
print(common_list_of_lists(nums))
chars = [['a','b','c'],['b','c','d'],['c','d','e']]
print("\nOriginal list:")
print(chars)
print("\nCommon elements of the said list of lists:")
print(common_list_of_lists(chars))
Sample Output:
Original list: [[7, 2, 3, 4, 7], [9, 2, 3, 2, 5], [8, 2, 3, 4, 4]] Common elements of the said list of lists: [2, 3] Original list: [['a', 'b', 'c'], ['b', 'c', 'd'], ['c', 'd', 'e']] Common elements of the said list of lists: ['c']
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Next: Write a Python program to insert a specified element in a given list after every nth element.
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Python: Tips of the Day
Returns True if the provided function returns True for every element in the list, False otherwise:
Example:
def tips_every(lst, fn=lambda x: x): return all(map(fn, lst)) print(tips_every([2, 4, 3], lambda x: x > 1)) print(tips_every([1, 2, 3]))
Output:
True True
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