Stack manipulation: a) The following operations are performed on a stack: PUSH A, PUSH B, POP, PUSH C, POP, POP, PUSH D, PUSH E, POP, PUSH F What does the stack contain after each operation? b) If the input stream is ZYXWV, create a sequence of pushes and pops such that the output stream is YWXVZ. (Note: The input stream of a stack is a list of all the elements we pushed onto the stack, in the order that we pushed them. The output stream is a list of all the elements that are popped off the stack, in the order that they are nonnod off)

Stack manipulation: a) The following operations are performed on a stack: PUSH A, PUSH B, POP, PUSH C, POP, POP, PUSH D, PUSH E, POP, PUSH F What does the stack contain after each operation? b) If the input stream is ZYXWV, create a sequence of pushes and pops such that the output stream is YWXVZ. (Note: The input stream of a stack is a list of all the elements we pushed onto the stack, in the order that we pushed them. The output stream is a list of all the elements that are popped off the stack, in the order that they are nonnod off)

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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C++ ProgrammingTopic: stacks queues and dequesBelow is the initial program of the main file, only modify the main file, sllstack file also provided for the reference of the main. See attached photo for instructions. main.cpp #include <iostream> #include <cstring> #include "sllstack.h" using namespace std; int main(int argc, char** argv) { SLLStack* stack = new SLLStack(); int test; string str; cin >> test; switch (test) { case 0: getline(cin, str); // PERFORM SOLUTION TO BRACKETS PROBLEM HERE // FYI: Place your variable declarations, if any, before switch. break; case 1: stack->push('a'); stack->push('b'); stack->push('c'); cout << stack->pop() << endl; cout << stack->pop() << endl; cout << stack->pop() << endl; cout << stack->isEmpty()…
Using arrays please write a program to implement the STACK concept. After creating the Array, the user is to be presented with a menu to choose a number of options such as pop, push, top, etc... elements (10-15) to be added on the stack are ints between 0 and 99 display the stack after every operation include a loop to re display the options (menu) and an outer loop to restart the program
The mapped list pattern Our second pattern is the mapped list pattern, described in video 4 3 mapped list pattern. Often we need to write a function that takes a list as a parameter and returns a new list in which each item in the original list is "mapped" to a new item in the result list. For example, the following function takes a list of numbers as a parameter and returns a list of all the numbers squared, e.g. squares ( [1, 3, 7]) returns [1, 9, 49]. def squares (nums): "Returns the squares of the given numbers""" result = [] for num in nums: result.append (num * num) return result Although this is just a special case of the accumulator pattern, it is so common that we give it its own name: the mapped list pattern. Consider the following function: def squares(nums): ""Returns the squares of the given numbers""" result = [] for num in nums: result.append (num * num) return result If the main program calls print(squares ( [5, -3, 2, 7]) what is the state table for the function…
struct nodeType { int infoData; nodeType * next; }; nodeType *first; … and containing the values(see image) Using a loop to reach the end of the list, write a code segment that deletes all the nodes in the list. Ensure the code performs all memory ‘cleanup’ functions.
given code lab4 #include <stdio.h>#include <stdlib.h> /* typical C boolean set-up */#define TRUE 1#define FALSE 0 typedef struct StackStruct{int* darr; /* pointer to dynamic array */int size; /* amount of space allocated */int inUse; /* top of stack indicator - counts how many values are on the stack */} Stack; void init (Stack* s){s->size = 2;s->darr = (int*) malloc ( sizeof (int) * s->size );s->inUse = 0;} void push (Stack* s, int val){/* QUESTION 7 *//* check if enough space currently on stack and grow if needed */ /* add val onto stack */s->darr[s->inUse] = val;s->inUse = s->inUse + 1;} int isEmpty (Stack* s){if ( s->inUse == 0)return TRUE;elsereturn FALSE;} int top (Stack* s){return ( s->darr[s->inUse-1] );} /* QUESTION 9.1 */void pop (Stack* s){if (isEmpty(s) == FALSE)s->inUse = s->inUse - 1;} void reset (Stack* s){/* Question 10: how to make the stack empty? */ } int main (int argc, char** argv){Stack st1; init (&st1);…
struct remove_from_front_of_dll { // Function takes no parameters, removes the book at the front of a doubly // linked list, and returns nothing. void operator()(const Book& unused) { //// TO-DO (13) |||| // Write the lines of code to remove the book at the front of "my_dll", // // Remember, attempting to remove an element from an empty data structure is // a logic error. Include code to avoid that. ///// END-TO-DO (13) //// } std::list& my_dll; };
HAPTER 5: Lists and Dictiona st membership > 51621 O WorkArea Instructions eadline: 03/ 11:59pm EDT Given that k contains an integer and that play_list has been defined to be a list, write a expression that evaluates to True if the value assigned to k is an element of play_list. Additional Notes: play_list and k should not be modified
5 partition_list (head) This is a little like split_list() from the Short problem, except that, instead of splitting the list into two by cutting it into the middle, you will now build two lists to return, using alternate values. The first value in the input list should be returned at the head of the first new list; the second value should be the head of the second list. Keep on alternating from there, putting one new value on the first list, and one on the second. (But remember that the length of the input list might be odd.) Example Suppose you have the following input list: 10 - 13 -> -1 -> 1000 - 0 It should return the following two lists: 10 1 0 13 -> 1000
Help make a C++ program that:1. Queries the user for the name of a file of text.2. Opens the file, and maintains two lists: one list for words beginning with the letter"D" or "d", and a second list for words beginning with any other letter. Each listmust maintain words in alphabetical order.3. Each node in the list must contain the word and the number of times that the word appears.4. Display (a screen at a time) each of the lists showing the alphabetized list of words and thenumber of times that each appears. Please have the main function as the first function in the program. Please make the least amount of functions as possible. Like for the file input have the file error thing in the same function. And please add comments throughout the code.
C++ ProgrammingActivity: Linked List Stack and BracketsExplain the flow of the main code not necessarily every line, as long as you explain what the important parts of the code do. The code is already correct, just explain the flow SEE ATTACHED PHOTO FOR THE PROBLEM INSTRUCTIONS int main(int argc, char** argv) {     SLLStack* stack = new SLLStack();     int test;     int length;     string str;     char top;     bool flag = true;     cin >> test;     switch (test) {         case 0:             getline(cin, str);              length = str.length();              for(int i = 0; i < length; i++){                 if(str[i] == '{' || str[i] == '(' || str[i] == '['){                     stack->push(str[i]);                 } else if (str[i] == '}' || str[i] == ')' || str[i] == ']'){                     if(!stack->isEmpty()){                         top = stack->top();                         if(top == '{' && str[i] == '}' || top == '(' && str[i] == ')' ||…
C++ ProgrammingActivity: Linked List Stack and BracketsExplain the flow of the code not necessarily every line, as long as you explain what the important parts of the code do. The code is already correct, just explain the flow #include "stack.h" #include "linkedlist.h" // SLLStack means Singly Linked List (SLL) Stack class SLLStack : public Stack {     LinkedList* list;     public:         SLLStack() {             list = new LinkedList();         }         void push(char e) {             list->add(e);             return;         }         char pop() {             char elem;             elem = list->removeTail();             return elem;         }         char top() {             char elem;             elem = list->get(size());             return elem;         }         int size() {             return list->size();         }         bool isEmpty() {             return list->isEmpty();         } };
#include <stdlib.h>#include <string.h>#include <stdio.h>#include "stack.h" /*   Checks whether the parenthesis in str are balanced using the stack.   Returns 1, if balanced 0, if unbalanced       An expression has balanced parenthesis if it satisfies the following   conditions:       1. The first observed parenthesis cannot be a closing parenthesis       2. All opening parentheses should have matching closing parenthesis       3. The parentheses cannot be intertwined but can be nested*/int parenthesis_balance_check(LINKED_STACK stack, char* str); int main() {    return 0;} PLEASE ONLY USE "C" LANGUAGE, DONT USE "C#" AND "C++"