jc wrote: > # Get Fibonacci Value > # Fibonacci(N) = Fibonacci(N-1) + Fibonacci(N-2) > # > # n = 900 is OK > # n = 1000 is ERROR , Why
How should we know? Please tell us what the error is, don't expect us to guess. [...] > if __name__ == '__main__': > # This n = 900 is OK > # But n = 1000 is ERROR Hint: how big is the cache? If the cache has 900 items, what makes you think you can look up the 1000th item? > n = 900 > cache = range(0 , n + 1 , 1) > for i in cache: > cache[i] = -1 This is a waste of time. Better to write: cache = [-1]*900 Even better is to use a dict instead of a list. -- Steven -- http://mail.python.org/mailman/listinfo/python-list