High Quality Content by WIKIPEDIA articles! In graph theory, reachability is the notion of being able to get from one vertex in a directed graph to some other vertex. Note that reachability in undirected graphs is trivial--it is sufficient to find the connected components in the graph, which can be done in linear time.For a directed graph D = (V, A), the reachability relation of D is the transitive closure of its arc set A, which is to say the set of all ordered pairs (s, t) of vertices in V...
High Quality Content by WIKIPEDIA articles! In graph theory, reachability is the notion of being able to get from one vertex in a directed graph to some other vertex. Note that reachability in undirected graphs is trivial--it is sufficient to find the connected components in the graph, which can be done in linear time.For a directed graph D = (V, A), the reachability relation of D is the transitive closure of its arc set A, which is to say the set of all ordered pairs (s, t) of vertices in V for which there exist vertices v0 = s, v1, …, vd = t such that (vi - 1, vi ) is in A for all 1 ? i ? d.
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Написание качественного кода на C++ не должно быть трудной задачей. Если разработчик будет следовать рекомендациям, приведенным в C++ Core Guidelines, то он будет писать исключительно надежные, эффективные и прекрасно работающие программы на C++. Но руководство настолько переполнено советами, что порой трудно понять, с чего начать. Начните с «Красивого C++»! Опытные программисты Гай Дэвидсон и Кейт Грегори...
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