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10. Stack As Link List.cpp
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10. Stack As Link List.cpp
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#include <stdio.h>
#include <conio.h>
#include <process.h>
#include <windows.h>
#define MAX 5
struct stack
{
int item;
struct stack *link;
};
int count;
void push(struct stack **,int);
int pop(struct stack **,int *);
void display(struct stack **);
struct stack *getnode()
{
struct stack *temp;
temp=(struct stack *)malloc(sizeof(struct stack));
return temp;
}
void main()
{
struct stack *p;
p=NULL;count=0;
int ch,ele,status=0;
while(true)
{
system("cls");
printf("1. Push\n2. Pop\n3. Display\n4. Exit\n\nEnter Choice : ");
scanf("%d",&ch);
switch(ch)
{
case 1:printf("Enter Element To Push : ");
scanf("%d",&ele);
push(&p,ele);
break;
case 2:ele=pop(&p,&status);
if(status==0)
{
break;
}
else
{
printf("Element Popped Is : %d",ele);
break;
}
case 3:display(&p);
break;
case 4:exit(0);
}
getch();
}
}
void push(struct stack **top,int ele)
{
if(count==MAX)
{
printf("Stack Overflow");
return;
}
struct stack *temp;
temp=getnode();
temp->item=ele;
temp->link=*top;
*top=temp;
count++;
}
int pop(struct stack **top,int *status)
{
struct stack *temp;
int del;
if(*top==NULL)
{
printf("Stack Underflow");
*status=0;
return NULL;
}
*status=1;
temp=*top;
del=temp->item;
*top=(*top)->link;
free(temp);
count--;
return del;
}
void display(struct stack **top)
{
if(*top==NULL)
{
printf("Stack Empty");
return;
}
struct stack *temp;
temp=*top;
while(temp!=NULL)
{
printf("%d\n",temp->item);
temp=temp->link;
}
printf("\n");
}
/*
License
=======
Copyright (C) 2011 SkyKOG
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/