Library/boost/libs/graph/example/edge_connectivity.cpp - main - BirdLeon/ROBLOX2016

Library/boost/libs/graph/example/edge_connectivity.cpp

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19 дек 2024, 19:11

19 дек 2024, 19:1105db15d

//=======================================================================
// Copyright 2000 University of Notre Dame.
// Authors: Jeremy G. Siek, Andrew Lumsdaine, Lie-Quan Lee
//
// Distributed under the Boost Software License, Version 1.0. (See
// accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)
//=======================================================================

/*
   IMPORTANT!!!
   ~~~~~~~~~~~~
   This example uses interfaces that have been deprecated and removed from
   Boost.Grpah. Someone needs to update it, as it does NOT compile.
*/

#include <boost/config.hpp>
#include <set>
#include <iostream>
#include <iterator>
#include <algorithm>
#include <boost/graph/adjacency_list.hpp>
#include <boost/graph/edge_connectivity.hpp>

using namespace boost;

int main()
{
    const int N = 8;
    typedef adjacency_list< vecS, vecS, undirectedS > UndirectedGraph;
    UndirectedGraph g(N);

    add_edge(0, 1, g);
    add_edge(0, 2, g);
    add_edge(0, 3, g);
    add_edge(1, 2, g);
    add_edge(1, 3, g);
    add_edge(2, 3, g);
    add_edge(3, 4, g);
    add_edge(3, 7, g);
    add_edge(4, 5, g);
    add_edge(4, 6, g);
    add_edge(4, 7, g);
    add_edge(5, 6, g);
    add_edge(5, 7, g);
    add_edge(6, 7, g);

    typedef graph_traits< UndirectedGraph >::edge_descriptor edge_descriptor;
    typedef graph_traits< UndirectedGraph >::degree_size_type degree_size_type;
    std::vector< edge_descriptor > disconnecting_set;

    degree_size_type c
        = edge_connectivity(g, std::back_inserter(disconnecting_set));

    std::cout << "The edge connectivity is " << c << "." << std::endl;
    std::cout << "The disconnecting set is {";

    std::copy(disconnecting_set.begin(), disconnecting_set.end(),
        std::ostream_iterator< edge_descriptor >(std::cout, " "));
    std::cout << "}." << std::endl;

    return 0;
}