2. (26 pts) Some languages (e.g., Algol 68) do not employ short-circuit evaluation for Boolean expressions....

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2. (26 pts) Some languages (e.g., Algol 68) do not employ short-circuit evaluation for Boolean expressions. However, in such languages an if...then...else construct (which only evaluates the arm that is needed) can be used as an expression that returns a value. Show how to use if...then...else to achieve the effect of short-circuit evaluation for A and B and for A or B. 2. (26 pts) Some languages (e.g., Algol 68) do not employ short-circuit evaluation for Boolean expressions. However, in such languages an if...then...else construct (which only evaluates the arm that is needed) can be used as an expression that returns a value. Show how to use if...then...else to achieve the effect of short-circuit evaluation for A and B and for A or B.

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