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Examples
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To connect, telnet to collatz. mcrcim.mcgill.edu 5757
The Big Dummies' Guide to the Internet Version 2.0 : Chapter 11: IRCs and MUDs 1994
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So I've recoded it a bit using a cache dictionary to store all the intermediate values in it: cache = {1: 1} def collatz (n, res): nn = n while True: if n in cache: if nn!
Planet Python 2010
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The straightforward recursive solution: def collatz (n): if n = = 1: return 1 if n % 2 = = 0: return 1 + collatz (n/2) else: return 1 + collatz (3*n + 1) very rapidly converges to ... an error:
Planet Python 2010
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= 1 + collatz (n/2, cache) else: cache [n] = 1 + collatz (3*n + 1, cache)
Planet Python 2010
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