1樓：
原生的Priority Queue已經被merge了
API 描述如下，感覺上符合大部分的需求了，應該是不是執行緒安全的，需要注意
namespace System.Collections.Generic
{ public class PriorityQueue // NB does not implement IEnumerable or ICollectionlt;summary>Creates an empty PriorityQueue instancelt;/summary>public PriorityQueuelt;summary>Creates a PriorityQueue instance with specified initial capacity in its backing arraylt;/summary>public PriorityQueue(int initialCapacitylt;summary>Creates a PriorityQueue instance with specified priority comparerlt;/summary>public PriorityQueue(IComparer? comparerpublic PriorityQueue(int initialCapacity, IComparer? comparerlt;summary>Creates a PriorityQueue populated with the specified values and prioritieslt;/summary>public PriorityQueue(IEnumerable<(TElement Element, TPriority Priority)> valuespublic PriorityQueue(IEnumerable<(TElement Element, TPriority Priority)> values, IComparer?
comparerlt;summary>Gets the current element count in the queuelt;/summary>public int Count { getlt;summary>Gets the priority comparer of the queuelt;/summary>public IComparer Comparer { getlt;summary>Enqueues the element with specified prioritylt;/summary>public void Enqueue(TElement element, TPriority prioritylt;summary>Gets the element with minimal priority, if it existslt;/summary>lt;exception cref="InvalidOperationException">The queue is empty.public TElement Peeklt;summary>Dequeues the element with minimal priority, if it existslt;/summary>lt;exception cref="InvalidOperationException">The queue is empty.public TElement Dequeuelt;summary>Try-variants of Dequeue and Peek methodslt;/summary>public bool TryDequeue([MaybeNullWhen(false)] out TElement element, [MaybeNullWhen(false)] out TPriority prioritypublic bool TryPeek([MaybeNullWhen(false)] out TElement element, [MaybeNullWhen(false)] out TPriority prioritylt;summary>Combined enqueue/dequeue operation, generally more efficient than sequential Enqueue/Dequeue callslt;/summary>public TElement EnqueueDequeue(TElement element, TPriority prioritylt;summary>Enqueues a sequence of element/priority pairs to the queuelt;/summary>public void EnqueueRange(IEnumerable<(TElement Element, TPriority Priority)> valueslt;summary>Enqueues a sequence of elements with provided prioritylt;/summary>public void EnqueueRange(IEnumerable values, TPriority prioritylt;summary>Removes all objects from the PriorityQueuelt;/summary>public void Clearlt;summary>Ensures that the PriorityQueue can hold the specified capacity and resizes its underlying buffer if necessarylt;/summary>public void EnsureCapacity(int capacitylt;summary>Sets capacity to the actual number of elements in the queue, if that is less than 90 percent of current capacitylt;/summary>public void TrimExcesslt;summary>Gets a collection that enumerates the elements of the queuelt;/summary>public UnorderedItemsCollection UnorderedItems { getpublic class UnorderedItemsCollection :
IReadOnlyCollection<(TElement Element, TPriority Priority)>, ICollectionpublic struct Enumerator : IEnumerator<(TElement TElement, TPriority Priority)>, IEnumeratorpublic Enumerator GetEnumerator
2樓：ksg fk
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