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The expression obtained by recursively producing a left expression, followed by an operator, followed by recursively producing a right expression is called?

(a) prefix expression

(b) infix expression

(c) postfix expression

(d) paranthesized expression

My query is from Trees topic in portion Trees of Data Structures & Algorithms I

This question was addressed to me in examination.

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Best answer
Correct choice is (b) infix expression

For explanation: It is an infix expression because the format of an infix expression is given by operand-operator-operand.

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