23 lines
857 B
Racket
23 lines
857 B
Racket
#lang racket
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;; a cons pair of two numbers
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(cons 1 2)
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;; a list of 3 numbers using only the cons function
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;; this could be more easily done using the single quote `'` (i.e., `'(1 2 3)`) but i don't use it as it seemed against the spirit of the question
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(cons 1 (cons 2 (cons 3 empty)))
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;; a list containing a string, a number, and a nested list of three numbers using only the cons function
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(cons "a string"
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(cons 0
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(cons (cons 1 (cons 2 (cons 3 empty))) empty)
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)
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)
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;; a list containing a string, a number, and a nested list of three numbers, using only the list function
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(list "a string" 0 (list 1 2 3))
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;; a list containing a string, a number, and a nested list of three numbers, using only the append function
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;; using `'` as the arguments of the `append` function must be themselves lists
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(append '("a string") '(0) '((1 2 3)))
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