Created
December 11, 2012 01:48
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| (define (last-pair list1) | |
| (if (= (length list1) 1) | |
| (car list1) | |
| (last-pair (cdr list1)))) | |
| (define (but-last list1) | |
| (if (= (length list1) 1) | |
| '() | |
| (cons (car list1) (but-last (cdr list1))))) | |
| (define (reverse x) | |
| (if (null? x) | |
| '() | |
| (cons (last-pair x) (reverse (but-last x))))) | |
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