Create unique frozensets from lists: Python code and example

Last update on December 21 2024 07:29:27 (UTC/GMT +8 hours)

Write a Python program that creates a frozenset with unique elements of a list.

Sample Solution:

Code:

def main():
    nums = [1, 1, 2, 3, 2, 4, 5, 5, 6, 7, 7]
    unique_frozenset_nums = frozenset(nums)
    
    nums1 = [1, 1, 3, 3, 2, 5, 5, -7, -7, 6, 0]
    unique_frozenset_nums1 = frozenset(nums1)
    
    print("Original List:", nums)
    print("Unique Frozenset:", unique_frozenset_nums)
    
    print("Original List:", nums1)
    print("Unique Frozenset:", unique_frozenset_nums1)

if __name__ == "__main__":
    main()

Output:

Original List: [1, 1, 2, 3, 2, 4, 5, 5, 6, 7, 7]
Unique Frozenset: frozenset({1, 2, 3, 4, 5, 6, 7})
Original List: [1, 1, 3, 3, 2, 5, 5, -7, -7, 6, 0]
Unique Frozenset: frozenset({0, 1, 2, 3, 5, 6, -7})

In the exercise above, the 'nums' contains some duplicate elements. The program creates two frozenset named 'unique_frozenset_nums' and 'unique_frozenset_nums1' using the "frozenset()" constructor. The constructor automatically removes duplicate elements from the list, leaving only unique elements.

The program then prints the original list and the resulting unique frozenset. Freezesets are unordered collections of unique elements, so the order of the elements is not guaranteed.

Flowchart:

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