Infix to Postfix Conversion Quiz

What is infix notation?

• Operators are placed before the operands.

• Operators are placed after the operands.

• Operators are placed randomly.

• Operators are placed between the operands.

What is postfix notation also known as?

• Polish notation

• Reverse Polish notation

• Standard notation

• Infix notation

Which data structure is primarily used for converting infix to postfix?

• Array

• Queue

• Linked List

• Stack

In the expression 'a + b * c', what is the postfix equivalent?

• ab+c*

• abc*+d-

• a+b*c

• abc*+

What happens when a closing parenthesis is encountered during conversion?

• Pop operators until an opening parenthesis is found.

• Add the closing parenthesis to the postfix expression.

• Push the closing parenthesis onto the stack.

• Ignore the closing parenthesis.

What is the precedence of the operator '^'?

• 1

• 4

• 2

• 3

In the algorithm for infix to postfix conversion, what is done with operands?

• They are pushed onto the stack.

• They are added to the postfix expression.

• They are converted to infix.

• They are ignored.

What is the output of the infix expression 'a*b^c-(d^e*f^g)+h' in postfix?

• abc^*de^fg*-h+

• abc^*de^fg^*h+

• abc^*de^fg^-h+

• abc^*de^fg^*-h+

What is the first step in converting an infix expression to postfix?

• Create an empty stack.

• Create an empty postfix string.

• Read the infix expression from right to left.

• Identify the highest precedence operator.

What does the algorithm do when it encounters an operator with lower precedence than the one on top of the stack?

• Pop the operator from the stack and add it to the postfix expression.

• Push the current operator onto the stack.

• Ignore the operator.

• Replace the operator on the stack.