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Pseudocode to Process Numerical Substrings

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Write an algorithm, using pseudo code, to perform one of the following tasks,* Given a string of numbers, identify all of the substrings that form numbers that are divisible by 3. For example, applying the algorithm on the string 37540 should produce the following substrings (not necessarily in this order): 0; 3; 75; 54; 375; 540

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Pseudocode and explanation are provided in this solution.

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My pseudocode will be very BASIC like. You will want to translate it to look more like C or Java I suppose.

This solution will make use of the MOD function. See http://en.wikipedia.org/wiki/Modulo for more info.

If you can't use MOD, you can easily check if a number is divisible by three by recursively summing its digits until you get a single digit number. If that ...

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