#88
Symmetric Difference
| Difficulty: | Easy |
| Topics: | set-theory |
Write a function which returns
the symmetric difference of two sets.
The symmetric difference is the set of items
belonging to one but not both of the two sets.
 | (= (__ #{1 2 3 4 5 6} #{1 3 5 7}) #{2 4 6 7}) |
| (= (__ #{:a :b :c} #{}) #{:a :b :c}) |
| (= (__ #{} #{4 5 6}) #{4 5 6}) |
| (= (__ #{[1 2] [2 3]} #{[2 3] [3 4]}) #{[1 2] [3 4]}) |