// WORKING
template <class T>
PrioQueue<T> PrioQueue<T>::operator*(PrioQueue<T> other) {
    PrioQueue<T> newPrioQueue;

    while (!this->queue.empty()) {
        while (!other.queue.empty()) {
            if (this->queue.top() == other.queue.top()) {
                newPrioQueue.queue.push(other.queue.top());
            }
            other.queue.pop();
            this->queue.pop();
        }
    }


    return newPrioQueue;
}

// NOT WORKING
template <class T>
PrioQueue<T> PrioQueue<T>::operator*(PrioQueue<T> other) {
    PrioQueue<T> newPrioQueue;

    while (!this->queue.empty()) {
        while (!other.queue.empty()) {
            if (this->queue.top() == other.queue.top()) {
                newPrioQueue.queue.push(other.queue.top());
                other.queue.pop();
            }
            this->queue.pop();
        }
    }


    return newPrioQueue;
}