RosettaCodeData/Task/Anonymous-recursion/Ring/anonymous-recursion.ring
2023-07-01 13:44:08 -04:00

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Text

# Project : Anonymous recursion
t=0
for x = -2 to 12
n = x
recursion()
if x > -1
see t + nl
ok
next
func recursion()
nold1=1
nold2=0
if n < 0
see "positive argument required!" + nl
return
ok
if n=0
t=nold2
return t
ok
if n=1
t=nold1
return t
ok
while n
t=nold2+nold1
if n>2
n=n-1
nold2=nold1
nold1=t
loop
ok
return t
end
return t