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Do you have the skills to make it to the top? Subscribe to our weekly challenges. Try your best to solve the problem, share your solution, and see how others tackled the same problem. We share our answer too.
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Do you have the skills to make it to the top? Subscribe to our weekly challenges. Try your best to solve the problem, share your solution, and see how others tackled the same problem. We share our answer too.
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Challenge #148: Rotating Century Puzzle

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My Solution:

 

 

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:-) this is a good challenge - makes you think about base 6 numbering systems...

Super impressed with @jdunkerley79 's and @EstherB47  's solution (few tools - exhaust the problem space)

 

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Spoiler
The approach here was to think about all the combinations for 1 slice first
- In other words - take the numbers which are at the 12 O'clock position in each ring, and call them slice 0; then go round the circle in clockwise order then you'll find slice 1, 2,3,4,5
- For slice zero - you create every combination of the inner 5 rings
- Once you know slice zero - you can derive the other slices fairly easily

The trick is to figure out the combinations by generating numbers; converting using base 6 math a set of 6 digits (each from 0 to 5).    This makes it much easier than generating 1 rotation for every ring.

Once you have this, you can then do a quick lookup to find the value written on the ring, and do a simple sum.



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Looking forward to reading the solutions from other folk.


 

Alteryx Certified Partner

Here's my solution... an assisted one as I couldn't have done it without peeking at @jdunkerley79 's MOD function.

 

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