Python: Count the occurrences of the items in a given list using lambda
Python Lambda: Exercise-49 with Solution
Write a Python program to count the occurrences of the items in a given list using lambda.
Sample Solution:
Python Code :
def count_occurrences(nums):
result = dict(map(lambda el : (el, list(nums).count(el)), nums))
return result
nums = [3,4,5,8,0,3,8,5,0,3,1,5,2,3,4,2]
print("Original list:")
print(nums)
print("\nCount the occurrences of the items in the said list:")
print(count_occurrences(nums))
Sample Output:
Original list: [3, 4, 5, 8, 0, 3, 8, 5, 0, 3, 1, 5, 2, 3, 4, 2] Count the occurrences of the items in the said list: {3: 4, 4: 2, 5: 3, 8: 2, 0: 2, 1: 1, 2: 2}
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Python: Tips of the Day
Splits values into two groups. If an element in filter is True, the corresponding element in the collection belongs to the first group; otherwise, it belongs to the second group
Example:
def tips_bifurcate(lst, filter): return [ [x for i, x in enumerate(lst) if filter[i] == True], [x for i, x in enumerate(lst) if filter[i] == False] ] print(tips_bifurcate(['little', 'boo', 'peep', 'sat'], [True, True, False, True]))
Output:
[['little', 'boo', 'sat'], ['peep']]
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