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"I need to take a string and find the number of 3 contiguous letters."

I notice that the results so far seem to rely upon an array for the result. I think that can lead to duplication- the array may have the same three letters at various indices, which will give an erroneously high result. Consider the test case "Mississippi", which has "Mis", "iss", "ssi", "sis", "sip", and "ppi"- 6 strings of three letters, eh? I think a hash is better to store the results, then count the number of keys.


In reply to Re: finding number of contiguous letters by mw487
in thread finding number of contiguous letters by Marknel

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