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The following postfix expression with single digit operands is evaluated using a stack:
8 2 3 ^ / 2 3 * + 5 1 * -
Note that ^ is the exponentiation operator. The top two elements of the stack after the first * is evaluated are
  • a)
    6, 1
  • b)
    5, 7
  • c)
    3, 2
  • d)
    1, 5
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
The following postfix expression with single digit operands is evaluat...
push 8 so stack is 8
push 2 so stack is 8 2
push 8 2 3
^ pop 3 and 2 perform opn 2^3 and push to stack. stack is 8 8
/ pop 8 and 8 perform 8/8 and push result to stack . stack is 1
push 2 stack is 1 2
push 3 stack is 1 2 3
* pop 3 and 2 perform by 2*3 and push . stack is 1 6
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Most Upvoted Answer
The following postfix expression with single digit operands is evaluat...
Explanation:

Evaluating the Postfix Expression:
- Start evaluating the given postfix expression from left to right.
- Push each operand onto the stack until an operator is encountered.
- When an operator is encountered, pop the top two elements from the stack, perform the operation, and push the result back onto the stack.

Given Postfix Expression:
8 2 3 ^ / 2 3 * + 5 1 * -

Stack Evaluation:
- Push 8 onto the stack.
- Push 2 onto the stack.
- Push 3 onto the stack.
- Calculate 2^3 = 8, pop 3 and 2 from the stack, push the result 8 onto the stack.
- Calculate 8/8 = 1, pop 8 and 8 from the stack, push the result 1 onto the stack.
- Push 2 onto the stack.
- Push 3 onto the stack.
- Calculate 2*3 = 6, pop 3 and 2 from the stack, push the result 6 onto the stack.
- Calculate 5*1 = 5, push 5 onto the stack.
- Calculate 6+5 = 11, pop 6 and 5 from the stack, push the result 11 onto the stack.
- Calculate 1-11 = -10, pop 11 and 1 from the stack, push the result -10 onto the stack.

Top two elements of the stack after evaluating the first *:
6, 1
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