Length of a set in Python
The length of a set can be found using the function len:
st = {'a', 'b', 'c', 'd'}
print(len(st)) # 4
Given a set:
st = {'x', 1, 'y', 2, 'z', 3, 'w'}
Find out the number of elements in it.
Given a set:
st = {1, 2, 3, 4, 2, 1}
Find out the number of elements in it.
