Week 9 _unsigned int size()

unsigned int Queue::size() {
    unsigned int size=0;
    Node* n = _head;
    if(!isEmpty()){
        size =1;
        while(n!=_tail) {
            size++;
            n = n->_next;
        }
    }
    return size;
}

Week 9_int& operator[](unsigned int index)

int& Queue::operator[] (unsigned int index){
     unsigned int size = this->size();
     Node* idx = _head;
     for(int i=0; i<int(index%size); i++){
         idx = idx->_next;
     }
     return idx->_data;
}