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According to Knuth's definition, a B-tree of order m is a tree which satisfies the following properties: [7] Every node has at most m children. Every node, except for the root and the leaves, has at least ⌈m/2⌉ children. The root node has at least two children unless it is a leaf. All leaves appear on the same level.
There were many kingdoms and empires in all regions of the continent of Africa throughout history. A kingdom is a state with a king or queen as its head. [1] An empire is a political unit made up of several territories, military outposts, and peoples, "usually created by conquest, and divided between a dominant centre and subordinate peripheries".
The Scramble for Africa [a] was the conquest and colonisation of most of Africa by seven Western European powers driven by the Second Industrial Revolution during the late 19th century and early 20th century in the era of "New Imperialism": Belgium, France, Germany, United Kingdom, Italy, Portugal and Spain.
This is an accepted version of this page This is the latest accepted revision, reviewed on 15 January 2025. Colonial expansion in late 19th and early 20th centuries "Neoimperialism" redirects here. For indirect imperialism and colonial practices following decolonization, see Neocolonialism. For broader coverage of this topic, see Imperialism. This article has multiple issues. Please help ...
The map depicts occupied Eastern Europe as a settler-colonial territory of Nazi Germany. [2] Imperialism is the maintaining and extending of power over foreign nations, particularly through expansionism, employing both hard power (military and economic power) and soft power (diplomatic power and cultural imperialism).
Lenin's argument differs from previous writers in that rather than viewing imperialism as a distinct policy of certain countries and states (as Bukharin had done, for example), [59] he saw imperialism as a new historical stage in capitalist development, and all imperialist policies were simply characteristic of this stage. The progression into ...
The New Map of Africa (1900–1916): A History of European Colonial Expansion and Colonial Diplomacy (1916) online free; Hopkins, Anthony G., and Peter J. Cain. British Imperialism: 1688–2015 (Routledge, 2016). Mackenzie, John, ed. The Encyclopedia of Empire (4 vol 2016) Maltby, William. The Rise and Fall of the Spanish Empire (2008).
In computer science, a 2–3–4 tree (also called a 2–4 tree) is a self-balancing data structure that can be used to implement dictionaries. The numbers mean a tree where every node with children (internal node) has either two, three, or four child nodes: a 2-node has one data element, and if internal has two child nodes;