Coding and Decoding #2A

Level pending

Clues...

  • (90) —> (10) = J
  • (63) —> (8) = H
  • (1475) —> (39) —> (7) = G
  • (79) —> (9) = I
  • (650) —> (26) = Z
  • (65475) —> (252) —> (16) —> P

Decode this: (327)(171)(200)(223)(252)(589)

LADEER BLOBBY SNOOPY SNOPPY LADDER PERFECT MIGHTY BLOOBY

Ashwin Padaki by Ashwin Padaki , 20, USA

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1 solution

Ashwin Padaki
May 16, 2015

The rule is that we find the square root of the given number, round it up to the next integer, find the square root of that, round it up… until the ROUNDED UP FORM is between 1 and 26. We then associate that with the letter value.

  • (327) —> (19) = S
  • (171) —> (14) = N
  • (200) —> (15) = O
  • (223) —> (15) = O
  • (252) —> (16) = P
  • (589) —> (25) = Y
0 Helpful 0 Interesting 0 Brilliant 0 Confused

That is not an obvious rule. You should give more than 3 examples to try and establish such a rule.

Also, when do we decide to stop? IE should the number 16 encode P, D, B or A?

Calvin Lin Staff - 6 years ago

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It stops when the rounded up value is between 1 and 26.

Ashwin Padaki - 6 years ago

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And also, I don't get why the rule is hard to understand. But I have clues now. Hopefully that's better…

Ashwin Padaki - 6 years ago

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@Ashwin Padaki – Thanks. For "unobvious" pattern recognition, it is best to give numerous examples so that people can try and find the rule and then check it against the other examples. For example, there are many ways one can justify continuing the sequence "1, 2, 4". If we gave "1, 2, 4, 7, 11, 16, 22, ..." then it becomes obvious that the pattern is "add n", instead of "multiply by 2.

Calvin Lin Staff - 6 years ago

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@Calvin Lin – Yes, I agree.

Ashwin Padaki - 6 years ago

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