View difference between Paste ID: 1ChkH0iY and kLWLLC4G

 #include<iostream>
 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;
 node *tail = NULL;
 
 int main(void)
 {
     int choice,number;
     while(1)
     {
         cout<<"Enter 1 to PUSH , 2 to POP , 3 to SEARCH , 4 to QUIT : ";
         cin>>choice;
         switch(choice)
         {
             case 1:
                 cout<<"Enter a number to insert in the Linked list : ";
                 cin>>number;
                 push(number);
                 break;
             case 2:
                 pop();
                 break;
             case 3:
                 cout<<"Enter a number to search in the Linked list : ";
                 cin>>number;
                 search(number);
                 break;
             case 4:
                 return 0;
             default:
                 cout<<"Wrong Input"<<endl;
                 break;
         }
     }
     return 0;
 }
 void push(int x)
 {
     node *newNode = new node;
     newNode->data=x;
     newNode->next=NULL;
     if(head==NULL)
     {
         tail = newNode;
         cout<<"First node pushed"<<endl;
     }
     else
     {
         newNode->next=tail;
         node *cursor = head;
         cursor->next=newNode;
         cout<<"Another node pushed"<<endl;
     }
     head=newNode;
 }
 void pop()
 {
     node *cursor=tail;
     cout<<"Queue :";
     while(cursor!=NULL)
     {
         cout<<" "<<cursor->data;
         cursor=cursor->next;
     }
     cout<<endl;
 }
 void search(int x)
 {
     node *cursor=tail;
     int flag = 0 , counter = 1;
     while(cursor!=NULL)
     {
          if(cursor->data==x)
          {
              flag=1;
              break;
          }
         counter++;
         cursor=cursor->next;
     }
     if(flag==1)
     {
         cout<<"Found . The element "<<x<<" is in the position "<<counter<<" in the queue"<<endl;
     }
     else
     {
         cout<<"The element "<<x<<" is not found in the queue"<<endl;
     }
 }