While evaluating a postfix expression, when an operator is encountered, what is the correct operation to be performed?
A. push it directly on to the stack
B. pop 2 operands, evaluate them and push the result on to the stack
C. pop the entire stack
D. ignore the operator
Answer: Option B
This Question Belongs to Data Structure >> Stacks In Data Structures
Related Questions on Stacks in Data Structures
What is the time complexity of push operation in a stack implemented using an array?
A. O(1)
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A. By using a singly linked list
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C. By using a circular linked list
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