Python: Count the frequency of consecutive duplicate elements in a given list of numbers, use itertools module
Python Itertools: Exercise-31 with Solution
Write a Python program to count the frequency of consecutive duplicate elements in a given list of numbers. Use the itertools module.
Sample Solution:
Python Code:
from itertools import groupby
def count_same_pair(nums):
result = [sum(1 for _ in group) for _, group in groupby(nums)]
return result
nums = [1,1,2,2,2,4,4,4,5,5,5,5]
print("Original lists:")
print(nums)
print("\nFrequency of the consecutive duplicate elements:")
print(count_same_pair(nums))
Sample Output:
Original lists: [1, 1, 2, 2, 2, 4, 4, 4, 5, 5, 5, 5] Frequency of the consecutive duplicate elements: [2, 3, 3, 4]
Python Code Editor:
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Python: Tips of the Day
Inverts a dictionary with non-unique hashable values:
Example:
def tips_collect_dictionary(obj): inv_obj = {} for key, value in obj.items(): inv_obj.setdefault(value, list()).append(key) return inv_obj ages = { "Owen": 25, "Jhon": 25, "Pepe": 15, } print(tips_collect_dictionary(ages))
Output:
{25: ['Owen', 'Jhon'], 15: ['Pepe']}
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