#55
Count Occurences
| Difficulty: | Medium |
| Topics: | seqs core-functions |
Write a function which returns a map
containing the number of occurences
of each distinct item in a sequence.
 | (= (__ [1 1 2 3 2 1 1]) {1 4, 2 2, 3 1}) |
| (= (__ [:b :a :b :a :b]) {:a 2, :b 3}) |
| (= (__ '([1 2] [1 3] [1 3])) {[1 2] 1, [1 3] 2}) |
Special Restrictions
frequencies