RosettaCodeData/Task/Ackermann-function/Scheme/ackermann-function-1.ss

6 lines
127 B
Scheme

(define (A m n)
(cond
((= m 0) (+ n 1))
((= n 0) (A (- m 1) 1))
(else (A (- m 1) (A m (- n 1))))))