Two stacks S1 and S2 are to be stored in a single array A[1:n], withPushS1 (x) and PushS2 (x) handling their respective push operations withregard to element x and PopS1 (x) and PopS2 (x) handling their respective popoperations, with the output variable x indicating the element popped out from thestack. Let TopS1 and TopS2 be their respective top-of-stack variables. The stacksshare their storage space in such a way that their respective bottom of stacks arepositioned in the middle of the array, as shown in Figure P4.1, and the stacks growin the opposite directions.Array A:[1][2] [3]...Stack S₁. [[n/2]][[n/2]+1] [n-2] [n-1] [n]Bottom ofStack S₁PopS1 (w)PopS2 (y)PushS1 (y)PushS2 (w)Stack S₂Figure P4.1. Two stacks are stored in a single array A withthe bottom of stacks positioned in the middle of the arrayPopS2 (y)PopS2 (w)Bottom ofStack S₂i) For n = 5, if S1 = {a, b} and S2 = {m, n}, how would array A look after all ofthe elements of stacks S1 and S2 were pushed into it invoking PushS1(x) andPushS2(x)?ii) How would array A look if the following operations were carried out in asequence? What values do the variables w and y represent at the end of theoperations?

Answer : A Stack is a linear data structure which follows the principle of LIFO (Last In First Out)…

i) For n = 5, if S1 = {a, b} and S2 = {m, n}, how would array A look after all of the elements of stacks S1 and S2 were pushed into it invoking PushS1(x) and PushS2(x)? ii) How would array A look if the following operations were carried out in a sequence? What values do the variables w and y represent at the end of the operations? PopS1 (w) PopS2 (y) PushS1 (y) PushS2 (w) PopS2 (y) PopS2 (w)

i) For n = 5, if S1 = {a, b} and S2 = {m, n}, how would array A look after all of the elements of stacks S1 and S2 were pushed into it invoking PushS1(x) and PushS2(x)? ii) How would array A look if the following operations were carried out in a sequence? What values do the variables w and y represent at the end of the operations? PopS1 (w) PopS2 (y) PushS1 (y) PushS2 (w) PopS2 (y) PopS2 (w)

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

See similar textbooks

Similar questions

Before deletion from a stack one must check the condition..... Select one: a.Underflow b.Maximum elements c.Existing elements d.Overflow
In java how do you: Delete the lowest/smallest item from the Circular Linked List (provided the list is sorted in ascending order) Reverse a Stack S, using a Queue Q Add the top 2 elements of a Stack S. Return the addition and push the data back in the stack S. How to reverse a Queue using a Stack? How to reverse a Queue using an array?
Please solve this problem in Java. It should read the elements of the stack as integers from a text file. n = 18 (number of elements/integers)
The following operations are applied to an empty stack s:s.push(1)s.push(2)s.push(3)s.pop()s.push(4)s.pop()The result of a further s.pop() is . . .a) a numberb) undefinedc) 4d) 2
S1 and S2 are two sorted stacks comprising n and m integers sorted indescending order, respectively, with their top elements pointing to the smallest intheir lists. Create a stack MERGE that merges the elements in stacks S1 and S2 suchthat at the end of the merge, all of the elements in S1 and S2 are available inMERGE in descending order, that is, with the largest element as its top element.Note that the number of elements in stack MERGE would be (n + m).
The CopyTo method copies the contents of a stack into an array. The arraymust be of type Object since that is the data type of all stack objects. Themethod takes two arguments: an array and the starting array index to beginplacing stack elements. The elements are copied in LIFO order, as if they werepopped from the stack. write a short code fragment demonstrating a CopyTomethod call:
I have implemented a stack using arrays. The array is 5 elements long and is called examstack. The contents are: examstack[0] = 36 examstack[1] = 49 examstack[2] = 7 examstack[3] = 67 examstack[4] = 9 If I did a Pop what would be returned? 9 or 36 09 07 O 67 O 9 or 67 36 or 49 O 36 49
Create a computer programme to arrange objects in a stack so that the smallest ones are on top. Although you are allowed to utilise an extra temporary stack, you are not allowed to transfer the components into another data structure (such an array). The following operations are supported by the stack: push, pop, peek, and is Empty.
Please, Add a display function that prints the stack using FIFO(first in first out) {printed in the sequence they were entered} Do not use for loop. this is stack implementation. not your normal for loop. I can do it using for loop. so if you don't know, don't try. I will downvote for sure!! #include<stdio.h> #include<string.h>#include<stdlib.h>#define max 5int push(char stack[max][80], int *top, char data[80]){if(*top == max -1)return(-1);else{*top = *top + 1;strcpy(stack[*top], data);return(1);}}int pop(char stack[max][80], int *top, char data[80]){if(*top == -1)return(-1);else{strcpy(data, stack[*top]);*top = *top - 1;return(1);}}int main(){char stack[max][80], nm[80];int top,ch,reply;top = -1; // Initialize Stackprintf("\tMENU");printf("\n----------------------------\n");printf(" 1. PUSH\n");printf(" 2. POP\n");printf(" 3. EXIT\n");printf("----------------------------\n");while(1){printf("Choose operation : ");scanf("%d", &ch);switch (ch){case 1 : //…
We push all the elements of an array A in order (starting from index 0 of the array A) into a stack. We then pop all the elements from the stack and store them in order (starting from index 0) in A. Which of the following is true after all pop operations complete? O The elements of A are reversed Each element of A is in its original location O The elements of A are in random new locations The array A is empty O None of the above
Suppose you have a stack with a maximum size of 1000 elements and you want to perform the following operations: Push 500 elements onto the stack. Pop 200 elements from the stack. Push 800 elements onto the stack. Pop all remaining elements from the stack. What is the final size of the stack after performing all these operations?