### Postfix Expression Evaluation Using Stack ADTAn application of the Stack ADT (Abstract Data Type) is the evaluation of postfix expressions. The following is a pseudocode algorithm for the postfix expression evaluation:1. **Scan the given postfix expression.**2. **For each symbol in the postfix expression:** - If the symbol is an operand, push its value onto a stack (Stack S). - If the symbol is an operator, perform the following steps: - Pop the top value from the stack; assign it to `operand2`. - Pop the next top value from the stack; assign it to `operand1`. - Apply the operator to `operand1` and `operand2` (i.e., compute `operand1 op operand2`). - Push the result back onto the stack.3. **Return the value that is on the top of the stack.**#### Pseudocode:```scan given postfix expression;for each symbol in postfix if operand then push its value onto a stack S; if operator then { pop operand2; pop operand1; apply operator to compute operand1 op operand2; push result back onto stack S; }return value at top of stack;```#### Example:Evaluate the following postfix expression: `6 5 3 + 2 12 * + 5 % +`To solve this expression using the stack algorithm:1. **Scan** `6` and push to the stack. Stack: `[6]`2. **Scan** `5` and push to the stack. Stack: `[6, 5]`3. **Scan** `3` and push to the stack. Stack: `[6, 5, 3]`4. **Scan** `+` (operator); pop `3` and `5`, compute `5 + 3 = 8`, then push the result `8` back to the stack. Stack: `[6, 8]`5. **Scan** `2` and push to the stack. Stack: `[6, 8, 2]`6. **Scan** `12` and push to the stack. Stack: `[6, 8, 2, 12]`7. **Scan** `*` (operator); pop `12` and `2`,

According to postfix expression pseudcode When there is operand then push value of operand into…

Recall that an application of the Stack ADT is postfix expression evaluation. As a reminder, here is pseudocode for the algorithm: scan given postfix expression; for each symbol in postfix if operand then push its value onto a stack S; if operator then ( pop operand2; pop operand1; apply operator to compute operand1 op operand2; push result back onto stack S; return value at top of stack; Evaluate the following postfix expression: 6 5 3 + 2 12 5 % +

Recall that an application of the Stack ADT is postfix expression evaluation. As a reminder, here is pseudocode for the algorithm: scan given postfix expression; for each symbol in postfix if operand then push its value onto a stack S; if operator then ( pop operand2; pop operand1; apply operator to compute operand1 op operand2; push result back onto stack S; return value at top of stack; Evaluate the following postfix expression: 6 5 3 + 2 12 5 % +

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question 8 Please explain your answers
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