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Question

Consider the usual algorithm for determining whether a sequence of parentheses is balanced.
Suppose that you run the algorithm on a sequence that contains 2 left parentheses and 3 right parentheses (in some order).

The maximum number of parentheses that appear on the stack AT ANY ONE TIME during the computation?

a.

1

b.

2

c.

3

d.

4 or more

Answer: (b).2

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Q. Consider the usual algorithm for determining whether a sequence of parentheses is balanced. Suppose that you run the algorithm on a sequence that contains 2 left parentheses and 3...

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