Clojure's
(defn fib [n]
(if (or (zero? n) (= n 1))
1
(+ (fib (dec n) ) (fib (- n 2)))))
(time (fib 36))
"Elapsed Time: 10475.325226 msecs"
24157817
Scala's
def fib(n:Int):Int=if (n==0||n==1)1 else fib(n-1)+fib(n-2)
def time(cal: =>Int)={
val beginTime=System.currentTimeMillis
cal
val endTime=System.currentTimeMillis
println(endTime-beginTime)
}
fib(36)
res70:Int=24157817
time(fib(36))
263
Both not tail recursive,both running on Repl (scala's interpreter),but
the difference between two is huge
10475~263
My box : Intel core2 cpu 1.86G，2G mem
Clojure and scala both latest build from svn
any ideas?
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