Question

Evaluate the following POSTFIX expression. Show the status of Stack after execution of each operation separately:

TRUE, FALSE, OR, NOT, TRUE, FALSE, AND, OR

Answer 1

S. No.	Element Scanned	Operation	Stack Status
1	True	Push (True)	True
2	False	Push (False)	True, False
3	OR	Pop(False) Pop(True) OR(True, False)=True Push (True)	True
4	NOT	Pop(True) NOT(True)=False	False
5	True	Push (True)	False, True
6	False	Push (False)	False, True, False
7	AND	Pop(False) Pop(True) AND(False, True)=False Push False	False, False
8	OR	Pop(False) Pop(False) OR(False, False)=False	False

The result is False