Stack using Linked List

Mar 3, 2016Download as pptx, pdf2 likes2,817 views

This document describes an implementation of a stack data structure using a single linked list in C. It includes functions to push elements onto the stack, pop elements off the stack, and display the elements currently in the stack. The main function contains a menu loop that calls these functions based on user input and exits when the user selects option 4.

Stack
-An implementation of Stack using
Single Linked List in C.

The Main Module#include<stdio.h>
#include<stdlib.h>
void push(), pop(), display();
struct stack
{
int data;
struct stack *link;
};
typedef struct stack STACK;
STACK *top=NULL;
int main()
{
int choice;
while(1)
{
printf("n----Stack Menu----n");
printf("1. Push.n");
printf("2. Pop.n");
printf("3. Display.n");
printf("4. Exit.n");
printf("Enter your choice: ");
scanf("%d",&choice);
switch(choice)
{
case 1: push();
break;
case 2: pop();
break;
case 3: display();
break;
case 4: exit(0);
break;
default: printf("Invalid option.");
}
}
}

Insert An Element Into Stack
void push()
{
STACK *temp;
int num;
temp=(STACK *)malloc(sizeof(STACK));
printf("Enter an integer value: ");
scanf("%d",&num);
temp->data=num;
temp->link=top;
top=temp;
display();
}

$Delete An Element From Stack void pop() { if(top==NULL) { printf("Stack Underflow"); } else { STACK *delete_rack; delete_rack=top; printf("Item popped is: %dn",delete_rack->data); top=top->link; free(delete_rack); display(); } }$

Display The Elements In Stack
void display()
{
if(top==NULL)
{
printf("Stack Underflow");
}
else
{
printf("The items in the stack are:");
STACK *head;
head=top;
while(head!=NULL)
{
printf("n%d",head->data);
head=head->link;
}
}
}

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Stack using Linked List

1. Stack -An implementation of Stack using Single Linked List in C.

2. The Main Module#include<stdio.h> #include<stdlib.h> void push(), pop(), display(); struct stack { int data; struct stack *link; }; typedef struct stack STACK; STACK *top=NULL; int main() { int choice; while(1) { printf("n----Stack Menu----n"); printf("1. Push.n"); printf("2. Pop.n"); printf("3. Display.n"); printf("4. Exit.n"); printf("Enter your choice: "); scanf("%d",&choice); switch(choice) { case 1: push(); break; case 2: pop(); break; case 3: display(); break; case 4: exit(0); break; default: printf("Invalid option."); } } }

3. Insert An Element Into Stack void push() { STACK *temp; int num; temp=(STACK *)malloc(sizeof(STACK)); printf("Enter an integer value: "); scanf("%d",&num); temp->data=num; temp->link=top; top=temp; display(); }

4. Delete An Element From Stack void pop() { if(top==NULL) { printf("Stack Underflow"); } else { STACK *delete_rack; delete_rack=top; printf("Item popped is: %dn",delete_rack->data); top=top->link; free(delete_rack); display(); } }

5. Display The Elements In Stack void display() { if(top==NULL) { printf("Stack Underflow"); } else { printf("The items in the stack are:"); STACK *head; head=top; while(head!=NULL) { printf("n%d",head->data); head=head->link; } } }

6. Presented By:- Sayantan Sur Thank You

Stack using Linked List

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Stack using Linked List