Thread: scanning the string

  1. #1
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    May 2012

    scanning the string

    Hello, I have a little question, I need to write a function which receives a string as a parameter (like molecular formula "H2O, C6H12O6, ..." ) and has to do 2 things:
    1: has to check that an element always starts with a capital letter and may be followed by a single lower case character like Fe2O3
    2:the abscence of a number indicates a single atom of that element. for example CO2

    I was thinking of using string length method but don't seem to have any luck, any ideas?

  2. #2
    and the hat of int overfl Salem's Avatar
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    Aug 2001
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