linklist.cpp

#include<iostream>
#include<cstdio>
using namespace std;

void push(int x);
void pop();
void search(int x);

typedef struct alvi
{
    int data;
    struct alvi *next;
} node;

node *head=NULL;

int main()
{
    while(1)
    {
        int choice;
        cout<<"1)push \t 2)pop \t 3)Search \nChoose: ";
        cin>>choice;
        if(choice==1)
        {
            int input;
            cout<<"Enteer n integer to push: ";
            cin>>input;
            push(input);
        }
        if(choice==2)
        {
            pop();
        }
        if(choice==3)
        {
            int input1;
            cout<<"enter element to search : "<<endl;
            cin>>input1;
            search(input1);
        }
    }
    /*
    node a;
    a.data=10;
    cout<<a.data<<":data";
    */
    return 0;
}
void push( int x)
{
    node *newNode=new node();
    newNode->data=x;
    if(head==NULL)
    {
        newNode->next=NULL;
        head=newNode;
        cout<<"First node pushed\n";
    }
    else
    {
        newNode->next=head;
        head=newNode;
        cout<<"value pushesd\n";
    }
}


void  pop()
{
    node *cursor;
    cursor=head;
    while(cursor!=NULL)
    {
        cout<<cursor->data<<"\t";
        cursor=cursor->next;
    }
    cout<<"\n";
}
void  search(int x)
{
    node *cursor1;
    cursor1=head;
    int counter=1;
    int flag=0;
    while(cursor1!=NULL)
    {
        if(cursor1->data==x)
        {
            flag=1;
            cout<<"element found"<<endl;
            cout<<"the "<<counter<<" th element is : "<<cursor1->data<<endl;
            break;
        }
        //cout<<cursor1->data<<"\t";
        cursor1=cursor1->next;
        counter++;
    }
    if(flag==0)
    {
        cout<<"the element "<<x<<" is not found"<<endl;
    }
    cout<<"\n";
}