Method enqueue

Data Structures/QueueUsingLL.cpp:52–63

    }
    
    void enqueue(T data) {
        if(size==0){
            fron->data=data;
            rear->data=data;
            size++;
            return;
        }
        Node<T>* temp=new Node<T>(data);
        rear->next=temp;
        rear=temp;
        size++;
    }
    
    int getSize() {
        return size;