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Question 1 of 5
Stack Applications
• Postfix Evaluation
How is a postfix expression evaluated using a stack?
A
Operators are pushed and operands are always discarded
B
Operands are pushed onto the stack, and when an operator appears, the required number of operands are popped, evaluated, and the result is pushed back
C
The expression is converted to infix first
D
A queue is used instead of a stack