Whether the infix expression has balanced parenthesis or not, Data Structure & Algorithms

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Using stacks, write an algorithm to determine whether the infix expression has balanced parenthesis or not

Algorithm parseparens

This algorithm reads a source program and parses it to make sure all opening -

closing parenthesis are paired

1. loop (more data)

if (character is not a  closing parenthesis)

pushstack ( stack, character)

else

if (character is closing parenthesis)

popstack (stack, token)

while ( token is not  an opening paranthesis)

popstack (stack, token)

endwhile

end if

end if

end loop

if (not emptystack (stack))

print (Error: opening parenthesis not matched)

end parseparens.

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 5/11/2013 1:31:02 AM Thanks for suggesting me this answer, appreciate your knowledge.