bughunt-bot[bot]
commented
8 months ago Team Name: ABC File Name: c/c++ 10 Line Number: [43] Bug Description: there is no condition for the x Solution: //CPP program to implement circular linked list
#include<bits/stdc++.h>
using namespace std;
struct node{ //defining the structure of the node
int data;
struct node *next;
};
//class definition for circular linked list
class CLL{
private:
struct node *tail;
public:
CLL(){
this->tail=NULL; //constructor to initialize the tail pointer
}
void insert(int,bool);
void deletenode(); //member function
void display();
~CLL(){ //destructor to delete the list
struct node *ptr=tail->next;
while(ptr!=tail){
struct node *temp=ptr;
ptr=ptr->next;
delete temp;
}
delete ptr;
}}; //member function definitions void CLL::insert(int a,bool x) { struct node *temp=new struct node; temp->data=a; temp->next=nullptr; if(tail==nullptr){ tail=temp; tail->next=temp; return; } temp->next=tail->next; tail->next=temp; if(x==True){ tail=temp; } }
//delete function to delete at end void CLL::deletenode() { if(tail==nullptr) { cout << "Invalid, List is already empty" << endl; return; } if(tail->next==tail) { struct node ptr=tail; tail=nullptr; delete ptr; return; } struct node temp=tail; struct node *ptr=tail->next; while(ptr->next!=tail) ptr=ptr->next; ptr->next=tail->next; tail=ptr; delete temp; return; }
//display function to display the list void CLL::display() { if (tail==nullptr) { cout << "List is empty" << endl; return; } struct node *ptr=tail->next; while(ptr->next!=tail->next) { cout << ptr->data << " -> "; ptr=ptr->next; } cout << ptr->data << endl; }
int main(){ int choice=1;CLL list1; //menu driven program do{ cout << "1.Insert"<<endl; cout << "2.Delete"<<endl; cout << "3.Display"<<endl; cout << "4.Exit the menu"<<endl; cout << "Enter your choice: "; cin>> choice; int a,b;bool x; switch(choice) { case 1:{ cout << "Enter the element to be inserted: "; cin>>a; cout << "0. Insert the element at beginning"<<endl; cout << "1. Insert the element at end"<<endl; cout << "Choice: "; cin>>choice; if(choice==0 || choice==1) //inserting at beginning or end { x=choice; list1.insert(a,x); choice=-1; } else{ cout << "Invalid choice" << endl; } break; } case 2:{ //deleting at end list1.deletenode(); break; } case 3:{ //displaying the list cout << "List"<<endl; list1.display(); break; } case 4:{ //exiting the menu cout << "Exiting the menu..."<<endl; } default: cout << "Invalid choice"<<endl; break; } }while(choice!=4); }
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