Stashbox by Peter Csajtai

<PackageReference Include="Stashbox" Version="3.1.2-preview-554" />

.NET API 155,136 bytes

HashTree<TValue>

sealed class HashTree<TValue>

public bool IsEmpty { get; }

public HashTree()

public void Add(TValue value)

public void Add(int key, TValue value)

public TValue GetOrDefault(int key)

public IEnumerable<KeyValuePair<int, TValue>> Walk()

public IEnumerable<TValue> WalkOnValues()