Python Exercise: Create a symmetric difference
Python sets: Exercise-9 with Solution
Write a Python program to create a symmetric difference.
From Wikipedia, in mathematics, the symmetric difference, also known as the disjunctive union, of two sets is the set of elements which are in either of the sets and not in their intersection. The symmetric difference of the sets A and B is commonly denoted by

For example, the symmetric difference of the sets {1,2,3} and {3,4} is {1,2,4}.
Sample Solution:-
Python Code:
setx = set(["apple", "mango"])
sety = set(["mango", "orange"])
#Symmetric difference
setc = setx ^ sety
print(setc)
Sample Output:
{'apple', 'orange'}
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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)
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