Problem 1961. Finding neighbors of [-1:1] in a matrix....

Created by Chris E.

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Hello All!Well I found this one fun to figure out, all you have to do is make a matrix of 1's or 0's (true or false) that show whether or not a number in a matrix is sitting directly next to (a neighbor) that is number that is +1 or -1 or == to that of the original number. Here are some examples:<pre class="language-matlab">M1 = [1 2 1;
 5 6 7;
 2 3 6]
</pre>SO now find numbers next to one another that are +1 of each-other.<pre class="language-matlab">output = [1 1 1;
 1 1 1;
 1 1 1]
One more:
</pre><pre class="language-matlab">M2 = [8 8 8;
 4 4 4;
 1 9 7]
</pre>SO now find numbers next to one another that are +1 of each-other.<pre class="language-matlab">output = [1 1 1;
 1 1 1;
 0 0 0]
</pre>One more:<pre class="language-matlab">M3 = [1 8 5;
 4 10 22;
 1 66 7]
</pre>SO now find numbers next to one another that are +1 of each-other.<pre class="language-matlab">output = [0 0 0;
 0 0 0;
 0 0 0]
</pre>Well good luck!

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Last Solution submitted on May 13, 2022

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Jean-Marie Sainthillier on 7 Mar 2014

Good problem. You should generalise it with more tests (size of the matrix, different gap...).
I suspect that my solution isn't correct.

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Solution 343420

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Dimitris Kaliakmanis on 31 Oct 2013

This doesn't work..Good for cody!!

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matrix manipulation

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Problem 1961. Finding neighbors of [-1:1] in a matrix....

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