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functional programming - Using car and cdr - Stack Overflow
WebJan 4, 2024 · By Keen Cheng · Updated January 4, 2024. In this article, we will list top 10 Badminton racket manufacturers in China. Contents hide. 1 CHASON. 2 VS-venson sport. 3 Guangzhou Sunbatta Sports Goods Co., Ltd. 4 Caston Sports Manufacture Co., Ltd. 5 Hangzhou Pailang Sports Goods Co., Ltd. 6 Anhui Lingmei Sporting Goods Co., Ltd. WebThe way that cons works is that it takes a single element and a list. It then prepends the element onto the list, making a new list. So (cons (list 1 2) (list 3 4)) creates a list with (list 1 2) as the first element with the rest of the list being the second argument. how do you handle aggressive patients
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WebAug 4, 2024 · You need to understand how pairs and lists are built, from The Racket Reference: A pair combines exactly two values. The first value is accessed with the car procedure, and the second value is accessed with the cdr procedure. Pairs are not mutable. WebFeb 28, 2024 · Since Racket doesn't recognize infix operation, changing the operation to a prefix expression works fine :) (define (gcd a b) (cond [(> a b) (gcd b (- a b))] [(< a b) (gcd a (- b a))] [else a])) Share. Improve this answer. Follow answered Nov 18, 2024 at ... WebSep 14, 2014 · racket racketprogram.rkt 'run-file > output.txt. It says you can in both Windows and Unix add lines in the beginning that makes your program able to be run without being an argument to racket executable. In Windows it means you need to call your script racketprogram.bat while in Unix you just have to make it executable. how do you handle an upset customer