Write C++ programs to implement the Stack ADT using a singly linkedlist
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/* Write C++ programs to implement the Stack ADT using a singly linkedlist*/
#include
#include
#include
using namespace std;
class node
{
public:
class node *next;
int data;
};
class stack : public node
{
node *head;
int tos;
public:
stack()
{
tos=-1;
}
void push(int x)
{
if (tos < 0 )
{
head =new node;
head->next=NULL;
head->data=x;
tos ++;
}
else
{
node *temp,*temp1;
temp=head;
if(tos >= 4)
{
cout <<"stack over flow";
return;
}
tos++;
while(temp->next != NULL)
temp=temp->next;
temp1=new node;
temp->next=temp1;
temp1->next=NULL;
temp1->data=x;
}
}
void display()
{
node *temp;
temp=head;
if (tos < 0)
{
cout <<" stack under flow";
return;
}
while(temp != NULL)
{
cout <data<< " ";
temp=temp->next;
}
}
void pop()
{
node *temp;
temp=head;
if( tos < 0 )
{
cout <<"stack under flow";
return;
}
tos--;
while(temp->next->next!=NULL)
{
temp=temp->next;
}
temp->next=NULL;
}
};
main()
{
stack s1;
int ch;
while(1)
{
cout <<"\n1.PUSH\n2.POP\n3.DISPLAY\n4.EXIT\n enter ur choice:";
cin >> ch;
switch(ch)
{
case 1: cout <<"\n enter a element";
cin >> ch;
s1.push(ch);
break;
case 2: s1.pop();break;
case 3: s1.display();
break;
case 4: exit(0);
}
}
return (0);
}
OUTPUT
enter ru choice:1
enter a element23
1.PUSH 2.POP 3.DISPLAY 4.EXIT
enter ru choice:1
enter a element67
1.PUSH 2.POP 3.DISPLAY 4.EXIT
enter ru choice:3
23 67
1.PUSH 2.POP 3.DISPLAY 4.EXIT
enter ru choice:2
1.PUSH 2.POP 3.DISPLAY 4.EXIT
enter ru choice:3
23
1.PUSH 2.POP 3.DISPLAY 4.EXIT
enter ru choice:2
1.PUSH 2.POP 3.DISPLAY 4.EXIT
enter ru choice:2
stack under flow
1.PUSH 2.POP 3.DISPLAY 4.EXIT
enter ru choice:4
This post was written by: Rajendra Prasad
Rajendra Prasad is a professional blogger, web designer and front end web developer. Follow him on Facebook
