UNB/ CS/ David Bremner/ teaching/ cs4613/ lectures/ lecture18/ fib.rkt
#lang plai/gc2/mutator
(allocator-setup "null-gc.rkt" 160)
(define (fib n)
  (cond
    [(<= n 1) 1]
    [else (+ (fib (- n 1)) (fib (- n 2)))]))

(fib 5)