See here for basic rules on problem.
Problem #3
Make a machine that accepts sequences of digits from 1-4 that have a product that is a square number.
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$\begingroup$ can we declare variables? $\endgroup$ – Omega Krypton Nov 14 '18 at 12:00
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$\begingroup$ What sort of variables are you after? $\endgroup$ – Ben Franks Nov 14 '18 at 12:08
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$\begingroup$ boolean, integer $\endgroup$ – Omega Krypton Nov 14 '18 at 12:09
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$\begingroup$ @OmegaKrypton Yes they are integers. $\endgroup$ – Ben Franks Nov 14 '18 at 12:21
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$\begingroup$ I mean declare a variable to check the occurrences of 1, 2, 3, and 4, to see if it should be accepted. Functions like increase a variable by 1 will be in each of the nodes. can we do so? $\endgroup$ – Omega Krypton Nov 14 '18 at 12:22
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I think this works...
Just keep track that we have an even number of both prime divisors (2 and 3).
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2$\begingroup$ damn you were faster than me, I was making a nice graphic ... $\endgroup$ – Nicolai Nov 14 '18 at 12:24
