diff options
Diffstat (limited to 'leetcode/lc-125-valid-palindrome.rkt')
| -rw-r--r-- | leetcode/lc-125-valid-palindrome.rkt | 12 |
1 files changed, 0 insertions, 12 deletions
diff --git a/leetcode/lc-125-valid-palindrome.rkt b/leetcode/lc-125-valid-palindrome.rkt deleted file mode 100644 index ed91d08..0000000 --- a/leetcode/lc-125-valid-palindrome.rkt +++ /dev/null @@ -1,12 +0,0 @@ -#lang racket - -(define/contract (is-palindrome s) - (-> string? boolean?) - (define clean-string - (string-downcase (string-replace s #rx"[^A-Za-z0-9]" ""))) - (string-prefix? (apply string-append (map string (reverse (string->list clean-string)))) - (substring clean-string - 0 - (ceiling (/ (string-length clean-string) 2))))) - -(is-palindrome "A man, a plan, a canal: Panama")
\ No newline at end of file |