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Task/Repeat-a-string/Racket/repeat-a-string-1.rkt
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Task/Repeat-a-string/Racket/repeat-a-string-1.rkt
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#lang racket
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;; fast
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(define (string-repeat n str)
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(string-append* (make-list n str)))
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(string-repeat 5 "ha") ; => "hahahahaha"
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Task/Repeat-a-string/Racket/repeat-a-string-2.rkt
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Task/Repeat-a-string/Racket/repeat-a-string-2.rkt
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(make-string 5 #\*) => "*****"
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