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Problem 1448. Create Volcano (or Atoll) martix. It is an extension of Bullseye matrix problem.

Created by Chintan

For example, if n=2 (maximum value), the output matrix should be

 [1 1 1 1 1;
  1 2 2 2 1;
  1 2 1 2 1;
  1 2 2 2 1;
  1 1 1 1 1]

where you go from inside to outside starting from 1 to 2(maximum value) and again move back from 2 to 1.

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31 correct solutions 19 incorrect solutions
Last solution submitted on Jun 28, 2014

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