Black turnstone the nest and feed themselves soon after hatching. They are able to fly well after 25–34 days. Black turnstone The black turnstone ("Arenaria melanocephala") is a species of small wading bird. It is one of two species of turnstone in the genus "Arenaria" the ruddy turnstone ("A. interpres") being the other. It is now classified in the sandpiper family, Scolopacidae, but was formerly sometimes placed in the plover family, Charadriidae. It is native to the west coast of North America and breeds only in Alaska. It is 22–25 centimeters long and weighs 100–170 grams. The black bill is 20–27 millimeters
Block sort Block sort Block sort, or block merge sort, is a sorting algorithm combining at least two merge operations with an insertion sort to arrive at in-place stable sorting. It gets its name from the observation that merging two sorted lists, and , is equivalent to breaking into evenly sized "blocks", inserting each block into under special rules, and merging pairs. One practical algorithm for O(log n) in place merging was proposed by Pok-Son Kim and Arne Kutzner in 2008. The outer loop of block sort is identical to a bottom-up merge sort, where each "level" of the sort merges pairs