# calculate Fibonacci(20)
# for benchmark
def fib(n):
if n<2:
return n
else:
return fib(n-2)+fib(n-1)
print fib(20)
# calculate Fibonacci(20)
# for benchmark
def fib(n):
if n<2:
return n
else:
return fib(n-2)+fib(n-1)
print fib(20)
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