C program to perform stack operation using singly linked list

Answer Posted / saad

#include<stdio.h>
#include<alloc.h>
#include<conio.h>
struct node
{
int data;
struct node* next;
};
typedef struct node node;
node* curr_ptr=NULL;
node* head=NULL;
int count=0;
#define max 5
main()
{
int stack_size;
int choice;
int ele;
clrscr();
while(1)
{
printf("\n\n\t1.Push\n\t2.Pop\n\t3.Display\n\t4.Exit\n");
printf("\n\tEnter Your Choice: ");
scanf("%d",&choice);
switch(choice)
{
case 1: if(count==max)
{
printf("\n\n\t\tSTACK OVERFLOW!!!");
clrscr();
}
else
{
printf("\n\n\t\tEnter The Element To Push: ");
scanf("%d",&ele);
Push(ele);
}
break;
case 2: if(count==0)
{
printf("\n\n\t\tSTACK UNDERFLOW!!!");
}
else
Pop();
break;
case 3: Display();
break;
case 4: exit();
break;
}
}
}
Push(int info)
{
node* new_node;
new_node=(node*)malloc(sizeof(node));
new_node->data=info;
new_node->next=NULL;
if(head==0)
{
head=new_node;
curr_ptr=head;
count++;
}
else
{
curr_ptr->next=new_node;
curr_ptr=curr_ptr->next;
count++;
}
return;
}
Pop()
{
node* pre_node, *temp1;
node* temp=head;
if(count==1)
{
head=0;
free(temp);
printf("\n\n\t\tNode is Deleted");
return;
}
else
{
while(temp->next!=0)
{
pre_node=temp;
temp=temp->next;
}
printf("%d",pre_node->data);
temp1=pre_node->next;
pre_node->next=NULL;
free(temp1);
}
return;
}
Display()
{
node* temp=head;
if(head==NULL)
{
printf("\n\tList Empty!!!");
return;
}
while(temp!=NULL)
{
printf("%d\t",temp->data);
temp=temp->next;
}
return;
}

Is This Answer Correct ?    24 Yes 5 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How will you write a code for accessing the length of an array without assigning it to another variable?

611


Why is python slower than c?

595


Is c still relevant?

635


Why do we use header files in c?

573


What is volatile variable in c?

652






Explain bit masking in c?

630


Why is void main used?

613


What are predefined functions in c?

558


how much salary u want ? why u join in our company? your domain is core sector why u prefer software ?

1501


What are derived data types in c?

604


Is file a keyword in c?

495


Write a C program to accept a matrix of any size. Find the frequency count of each element in the matrix and positions in which they appear in the matrix

1507


What is break in c?

578


What is a pointer value and address in c?

628


Why is c so popular?

642