Using a stack to compare letters in a string
So I have to write a code and must you a stack, to determine if the sequence is is in the form of X^nY^n.
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I am not sure what is wrong with your code, it seems unnecessarily complicated to me. The only problem I can find is
seq[i+1]!='A'. You would be trying to access memory outside the array when i == seq.length() - 1.
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