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Update 3n+1.py - #996
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Made variable names more meaningful and removed nested functions.
cclauss
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Jul 10, 2019
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cclauss
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Jul 10, 2019
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What should happen on a negative number? a floating point number? defn31(initial_number):
""" >>> n31(43) # doctest: +ELLIPSIS ([43, ...], 29) """ |
SandersLin
commented
Jul 11, 2019
ContributorAuthor
Good catch! Added argument validation and type hints. |
cclauss
reviewed
Jul 11, 2019
| counter += 1 | ||
| path += [a] | ||
| return path, counter | ||
| return path, counter + 1 |
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Would it also work to return path, len(path) ?
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Yes, that is more elegant, thanks!
cclauss
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Jul 11, 2019
| """ | ||
| Returns Collatz sequence of number a | ||
| Returns Collatz sequence of a number |
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This comment says that we are only returning the sequence but we are returning the sequence and its length.
cclauss
reviewed
Jul 11, 2019
| def main(): | ||
| num = 4 | ||
| path , length = n31(num) | ||
| print("The Collatz sequence of {0} took {1} steps. \nPath: {2}".format(num,length, path)) |
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You can drop the 0, 1, and 2 here and drop the 0 in the raise statements above.
cclauss
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July 13, 2019 07:04
stokhos pushed a commit
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Jan 3, 2021
* Update 3n+1.py Made variable names more meaningful and removed nested functions. * Update 3n+1.py * Update 3n+1.py * Update 3n+1.py
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Made variable names more meaningful and removed nested functions.