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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