From 8777ff071f7bb37631baa7b6717ad29961e50911 Mon Sep 17 00:00:00 2001 From: "H.J" Date: Wed, 9 Oct 2024 11:36:55 -0400 Subject: sorting by language --- racket/leetcode/lc-819-most-common-word.rkt | 14 ++++++++++++++ 1 file changed, 14 insertions(+) create mode 100644 racket/leetcode/lc-819-most-common-word.rkt (limited to 'racket/leetcode/lc-819-most-common-word.rkt') diff --git a/racket/leetcode/lc-819-most-common-word.rkt b/racket/leetcode/lc-819-most-common-word.rkt new file mode 100644 index 0000000..68a89c3 --- /dev/null +++ b/racket/leetcode/lc-819-most-common-word.rkt @@ -0,0 +1,14 @@ +#lang racket +(define/contract (most-common-word paragraph banned) + (-> string? (listof string?) string?) + (define word-count-hash (make-hash)) + (define banned-word-hash + (apply hash (flatten (map (λ (w) (cons w 'banned)) banned)))) + (define word-list + ((compose string-split string-downcase) + (string-replace paragraph #px"[^A-Za-z[:space:]]" " "))) + (for/list ([word (in-list word-list)]) + (cond [(hash-has-key? banned-word-hash word) void] + [else (hash-update! word-count-hash word add1 0)])) + (car (argmax cdr (hash->list word-count-hash)))) + -- cgit v1.2.3