diff options
Diffstat (limited to 'racket/leetcode/lc-905-sort-by-parity.rkt')
| -rw-r--r-- | racket/leetcode/lc-905-sort-by-parity.rkt | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/racket/leetcode/lc-905-sort-by-parity.rkt b/racket/leetcode/lc-905-sort-by-parity.rkt new file mode 100644 index 0000000..7c736f3 --- /dev/null +++ b/racket/leetcode/lc-905-sort-by-parity.rkt @@ -0,0 +1,7 @@ +#lang racket +(define/contract (sort-array-by-parity A) + (-> (listof exact-integer?) (listof exact-integer?)) + ((compose flatten (if (odd? (car A)) reverse identity)) + (group-by (λ (n) (modulo n 2)) A))) + +(sort-array-by-parity '(1 1 3 4))
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