void search()
{
    struct node*i;
    int ele,pos,found=0;
    cout<<"Enter element to search:";
    cin>>ele;
    pos=1;
    for(i=head;i!=NULL;i=i->next,pos++)
    {
        if(i->info==ele)
        {
            cout<<"Element found at:"<<pos<<endl;
            found=1;
        }
    }
    if(!found)
    cout<<"Element not found."<<endl;
}