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Task/Pangram-checker/Racket/pangram-checker.rkt
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Task/Pangram-checker/Racket/pangram-checker.rkt
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#lang racket
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(define (pangram? str)
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(define chars (regexp-replace* #rx"[^a-z]+" (string-downcase str) ""))
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(= 26 (length (remove-duplicates (string->list chars)))))
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(pangram? "The quick Brown Fox jumps over the Lazy Dog")
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