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47 lines
1.1 KiB
Plaintext
47 lines
1.1 KiB
Plaintext
(define (getmax a b)
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(if (> a b) a b)
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)
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(define (equal a b)
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(if (nil? a) (if (nil? b) 1 0)
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(if (atom a)
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(if (atom b) (= a b) 0)
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(if (atom b) 0 (if (equal (car a) (car b)) (equal (cdr a) (cdr b)) 0))
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)
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)
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)
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(define (coffee-shop-impl times last cur max)
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(if (= times (nil))
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(getmax cur max)
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(if (equal last (car times))
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(coffee-shop-impl (cdr times) last (+ cur 1) max)
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(coffee-shop-impl (cdr times) (car times) 1 (getmax cur max))
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)
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)
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)
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(define (coffee-shop times)
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(coffee-shop-impl times (nil) 0 0)
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)
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(equal (nil) (nil))
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(equal (nil) ())
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(equal () (nil))
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(equal (nil) (quote()))
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(equal () (nil))
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(equal () (quote()))
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(equal (quote(a))(quote()))
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(equal (quote(a)) ())
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(equal (quote(a)) (nil))
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(equal (quote(a)) (quote(a.)))
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(equal (quote(a.)) (quote(a b)))
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(equal (quote(a b)) (quote(a.b)))
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(equal (quote(a b)) (quote(a b)))
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(coffee-shop (nil))
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(coffee-shop (quote( (8 0) (8 10) (8 10) (8 45) )))
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(coffee-shop (quote( (8 12) (10 11) (10 11) (15 15) (15 15) (15 15) (22 22) (22 22) (22 59) ))) |