20 lines
254 B
Text
20 lines
254 B
Text
|
fn fibIter n =
|
||
|
|
(
|
||
|
|
if n < 2 then
|
||
|
|
(
|
||
|
|
n
|
||
|
|
)
|
||
|
|
else
|
||
|
|
(
|
||
|
|
fib = 1
|
||
|
|
fibPrev = 1
|
||
|
|
for num in 3 to n do
|
||
|
|
(
|
||
|
|
temp = fib
|
||
|
|
fib += fibPrev
|
||
|
|
fibPrev = temp
|
||
|
|
)
|
||
|
|
fib
|
||
|
|
)
|
||
|
|
)
|