Why the if block on line 53 and line 71 not working?

I was writing a code to perform operations on simple linked list. Everything is working fine but for some reason two if blocks( both similar ) fails to execute although their condition is true. The following is my code help me debug it. I am currently a newcomer in coding c++ is my first language.

Thank You

 #include <iostream>
 using namespace std;
//Operations on Linked List....


struct node   //Data Structure  
{


        int data;
        node *next;


} *start;  //Initial Node


int main()
{
        start = new node; //Setup
        start->data=0;    
        start->next=NULL;

        cout<<"Welcome to Linked List Review program..."; //Initial Text   

        node *ptr=start;   //Geting List
        char ch='Y'; int x; 
        while(ch=='Y'||ch=='y')
        {
            cout<<"\nEnter the data: "; cin>>x;
            ptr->next = new node;
            ptr = ptr->next;
            ptr->data = x;
            ptr->next = NULL;

            cout<<"\nDo you want to enter more? "; cin>>ch;

        }

    ptr=start->next; while(ptr->next!=NULL) { cout<<ptr->data<<" "; ptr = ptr->next; } cout<<ptr->data<<endl;  //Print Linked List

    ptr=start->next; //Reset Ptr for further operation

    int i=0; while(ptr!=NULL) { ptr = ptr->next; i++;   } cout<<endl<<"\nNo. of elements are: "<<i<<endl;  //Counting and printing the count of no. of elements 

    ptr=start->next; //Reset ptr for further operation
    cout<<"\n1)Add Data\n2)Delete Data\nCHoose the action you want to perform: "; cin>>x; //User Interface menu
    switch (x)
            {
                case 1: // Create
                {
                            int j; cout<<"Enter the position you want to perform operation on: "; cin>>j;

                            if((j<0) && (j>i)) //Checking if user is a tester
                                { cout<<"\nYou love annoy all developers you f*ing tester..."; 
                                    break;      
                                } 

                            else
                                {   // Creating and connecting new node
                                    node *p = new node; cout<<"\nEnter the data: "; cin>>p->data;
                                    for(int k=0; k<j-1;k++) ptr=ptr->next;
                                    node *temp = ptr->next; ptr->next = p; p->next = temp;
                                    break;
                                }

                }
                case 2:
                {   // Delete
                    int j; cout<<"Enter the position you want to perform operation on: "; cin>>j;

                    if((j<0) && (j>i)) //Checking if user is a tester
                                { cout<<"\nYou love annoy all developers you f*ing tester..."; 
                                    break;      

                    else
                        { // Deleting following node
                            for(int k=0; k<j-1;k++) ptr=ptr->next;
                            node *temp = ptr->next; ptr->next = (ptr->next)->next; delete temp;
                            break;
                        }


                }

            }

    ptr=start->next; while(ptr->next!=NULL) { cout<<ptr->data<<" "; ptr = ptr->next; } cout<<ptr->data<<endl; // Printing Linked List

    cout<<"\nThank You...\nDeleting Linked List..."; // Deleting Linked List
    node *temp=NULL;
    i=0; ptr=start; while(ptr->next!=NULL) {  temp = ptr->next; delete ptr; ptr=temp; cout<<"\nDeleted "<<i++<<"th node"; }

    delete start; return 0;
} // The End