Question 5 of 7intermediate🔧 ApplyNumerical4 marks
Evaluate following postfix expressions while showing status of stack after each operation given A=3, B=5, C=1, D=4
(a)
A B + C *
Answer
Result = 8
(b)
A B * C / D *
Answer
Result = 60
Explanation
This question tests the evaluation of postfix expressions using stack data structure. According to Algorithm 3.2 from the textbook, we process each character from left to right: if it's an operand, PUSH onto stack; if it's an operator, POP two elements, apply the operator, and PUSH the result back. The final single element in the stack is the result.