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Diffstat (limited to 'coding-exercises/2/62.rkt')
| -rw-r--r-- | coding-exercises/2/62.rkt | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/coding-exercises/2/62.rkt b/coding-exercises/2/62.rkt index 705dcbd..a1be49e 100644 --- a/coding-exercises/2/62.rkt +++ b/coding-exercises/2/62.rkt @@ -1,6 +1,8 @@ #lang racket ;; In each branch of the problem we either terminate the process or we reduce the problem to a subproblem with set - (car set) +;; O(n) +;; need to iterate like this to prevent duplicates? (define (union-set set1 set2) (cond ((and (null? set1) (null? set2)) '()) ((null? set1) (cons (car set2) (union-set set1 (cdr set2)))) @@ -12,4 +14,3 @@ (define test-list (list 1 2)) (define test-list2 (list 4 5 6 7)) (union-set test-list test-list2) - |