Buckets
A complete, fully tested and documented data structure library
...A heap is a binary tree that maintains the heap property. Every node is less than or equal to each of its children. A linked list is a sequence of items arranged one after another. A multi dictionary is a special kind of dictionary that holds multiple values against each key. In a priority queue, each element is associated with a "priority", and elements are dequeued in the highest-priority-first order (the elements with the highest priority are dequeued first).