Write a function two in Scheme that takes a single parameter, a list of integers. The function two returns #t if the list of integers includes two equal integers. Otherwise, it returns #f. The list L is flat, i.e., it does not contain sublists. Note that the function must be called two and that it takes a single parameter, a list. Examples (two ‘(7 7)) returns #t (two ‘(5 3 3 4)) returns #t (two ‘(11 3 5 11)) returns #t (two ‘(1 2 3 4 5 6 10)) returns #f (two ‘(24 14 11 4 6)) returns #f The whole solution must be packed in one recursive function two which must look as follows: (define two (lambda (list) (cond ...
Write a function two in Scheme that takes a single parameter, a list of integers. The function two
returns #t if the list of integers includes two equal integers. Otherwise, it returns #f. The list L is
flat, i.e., it does not contain sublists.
Note that the function must be called two and that it takes a single parameter, a list.
Examples
(two ‘(7 7)) returns #t
(two ‘(5 3 3 4)) returns #t
(two ‘(11 3 5 11)) returns #t
(two ‘(1 2 3 4 5 6 10)) returns #f
(two ‘(24 14 11 4 6)) returns #f
The whole solution must be packed in one recursive function two which must look as follows: (define two (lambda (list)
(cond
...
)))
In other words, you have to define a single COND statement. Nested COND statements are not
allowed.
Inside COND, you can use ONLY the following constructs: - null?
- car
- cdr
- cons
- else
- =
- #t
- #f
- two
- list
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