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Python Data Types: Sets - Exercises, Practice, Solution

Python Sets [ 21 exercises with solution]

[An editor is available at the bottom of the page to write and execute the scripts.]

1. Write a Python program to create a set. Go to the editor

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2. Write a Python program to iterate over sets. Go to the editor

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3. Write a Python program to add member(s) in a set. Go to the editor

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4. Write a Python program to remove item(s) from set Go to the editor

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5. Write a Python program to remove an item from a set if it is present in the set. Go to the editor

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6. Write a Python program to create an intersection of sets. Go to the editor

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7. Write a Python program to create a union of sets. Go to the editor

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8. Write a Python program to create set difference. Go to the editor

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9. Write a Python program to create a symmetric difference. Go to the editor

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10. Write a Python program to check if a set is a subset of another set. Go to the editor

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11. Write a Python program to create a shallow copy of sets. Go to the editor

Note : Shallow copy is a bit-wise copy of an object. A new object is created that has an exact copy of the values in the original object.

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12. Write a Python program to clear a set. Go to the editor

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13. Write a Python program to use of frozensets. Go to the editor
Note: Frozensets behave just like sets except they are immutable.

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14. Write a Python program to find maximum and the minimum value in a set. Go to the editor

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15. Write a Python program to find the length of a set. Go to the editor

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16. Write a Python program to check if a given value is present in a set or not. Go to the editor

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17. Write a Python program to check if two given sets have no elements in common. Go to the editor

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18. Write a Python program to check if a given set is superset of itself and superset of another given set. Go to the editor

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19. Write a Python program to find the elements in a given set that are not in another set. Go to the editor

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20. Write a Python program to check a given set has no elements in common with other given set. Go to the editor

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21. Write a Python program to remove the intersection of a 2nd set from the 1st set. Go to the editor

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Python Code Editor:

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Do not submit any solution of the above exercises at here, if you want to contribute go to the appropriate exercise page.

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Python: Tips of the Day

Python: Cache results with decorators

There is a great way to cache functions with decorators in Python. Caching will help save time and precious resources when there is an expensive function at hand.

Implementation is easy, just import lru_cache from functools library and decorate your function using @lru_cache.

from functools import lru_cache

@lru_cache(maxsize=None)
def fibo(a):
    if a <= 1:
        return a
    else:
        return fibo(a-1) + fibo(a-2)

for i in range(20):
    print(fibo(i), end="|")

print("\n\n", fibo.cache_info())

Output:

0|1|1|2|3|5|8|13|21|34|55|89|144|233|377|610|987|1597|2584|4181|

 CacheInfo(hits=36, misses=20, maxsize=None, currsize=20)