public Graph(Graph graph)
{
adjacency_list = new List<KeyValuePair<Node, List<int>>>();
foreach (var items in graph.adjacency_list)
adjacency_list.Add(new KeyValuePair<Node, List<int>>(new Node(items.Key), new List<int>(items.Value)));
}
static public Graph FileReading(string filepath, int size)
{
StreamReader sr = new StreamReader(filepath, Encoding.GetEncoding(1251));
Graph graph = new Graph();
for (int i = 0; i < size; i++)
graph.adjacency_list.Add(new KeyValuePair<Node, List<int>>(new Node(i + 1), new List<int>()));
while (!sr.EndOfStream)
{
List<string> list = sr.ReadLine().Split(' ').Where(x => x != "").ToList();
graph.adjacency_list[Parse(list[0]) - 1].Value.Add(Parse(list[1]));
}
return graph;
}