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| author | H.J <thechairman@thechairman.info> | 2024-10-09 11:36:55 -0400 |
|---|---|---|
| committer | H.J <thechairman@thechairman.info> | 2024-10-09 11:36:55 -0400 |
| commit | 8777ff071f7bb37631baa7b6717ad29961e50911 (patch) | |
| tree | 6d59c4ed58e454b960339c3d1151f0a879e8d7cb /leetcode/lc-125-valid-palindrome.rkt | |
| parent | 6156a9ef7be4012063a042aafb4e9b0d7eadde8e (diff) | |
| download | gleam_aoc-8777ff071f7bb37631baa7b6717ad29961e50911.tar.gz gleam_aoc-8777ff071f7bb37631baa7b6717ad29961e50911.zip | |
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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")
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