6 kyu
Basic Optimization - Collatz Sum Sequence
43Dr Gabo
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Algorithms
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I don't get it. What do you want us to sum up? Please show an example with the result.
approved at 6 kyu: ranking votes
use katex
f(n) = \frac{n}{2} \quad \text{if } n \equiv 0 \pmod{2}\\ f(n) = 3n + 1 \quad \text{if } n \equiv 1 \pmod{2}done. thanks.
python new test frameworks
approved by someone.
The specified upper bound is
2 * 10**7, but it's only2 * 10**6in the tests.I can't find any reference to that 2* 10**7 that you mention, the description says that inputs are in the range
[1, 2*10e6].10e6 == 10 * 10**6 == 10**7Corrected! It was a dumb mistake :p
Is this any different than all the other Collatz conjecture katas?
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I think so. This exercise happens to use the sequence, but calculating the length is not the real problem.
Well, why not then.