mirror of
https://github.com/boostorg/graph.git
synced 2025-05-09 23:14:00 +00:00
66 lines
2.2 KiB
C++
66 lines
2.2 KiB
C++
//=======================================================================
|
|
// Copyright 2001 Jeremy G. Siek, Andrew Lumsdaine, Lie-Quan Lee,
|
|
//
|
|
// This file is part of the Boost Graph Library
|
|
//
|
|
// You should have received a copy of the License Agreement for the
|
|
// Boost Graph Library along with the software; see the file LICENSE.
|
|
// If not, contact Office of Research, Indiana University,
|
|
// Bloomington, IN 47405.
|
|
//
|
|
// Permission to modify the code and to distribute the code is
|
|
// granted, provided the text of this NOTICE is retained, a notice if
|
|
// the code was modified is included with the above COPYRIGHT NOTICE
|
|
// and with the COPYRIGHT NOTICE in the LICENSE file, and that the
|
|
// LICENSE file is distributed with the modified code.
|
|
//
|
|
// LICENSOR MAKES NO REPRESENTATIONS OR WARRANTIES, EXPRESS OR IMPLIED.
|
|
// By way of example, but not limitation, Licensor MAKES NO
|
|
// REPRESENTATIONS OR WARRANTIES OF MERCHANTABILITY OR FITNESS FOR ANY
|
|
// PARTICULAR PURPOSE OR THAT THE USE OF THE LICENSED SOFTWARE COMPONENTS
|
|
// OR DOCUMENTATION WILL NOT INFRINGE ANY PATENTS, COPYRIGHTS, TRADEMARKS
|
|
// OR OTHER RIGHTS.
|
|
//=======================================================================
|
|
#include <deque> // to store the vertex ordering
|
|
#include <vector>
|
|
#include <list>
|
|
#include <boost/graph/vector_as_graph.hpp>
|
|
#include <boost/graph/topological_sort.hpp>
|
|
|
|
int
|
|
main()
|
|
{
|
|
using namespace boost;
|
|
const char *tasks[] = {
|
|
"pick up kids from school",
|
|
"buy groceries (and snacks)",
|
|
"get cash at ATM",
|
|
"drop off kids at soccer practice",
|
|
"cook dinner",
|
|
"pick up kids from soccer",
|
|
"eat dinner"
|
|
};
|
|
const int n_tasks = sizeof(tasks) / sizeof(char *);
|
|
|
|
std::vector < std::list < int > > g(n_tasks);
|
|
g[0].push_back(3);
|
|
g[1].push_back(3);
|
|
g[1].push_back(4);
|
|
g[2].push_back(1);
|
|
g[3].push_back(5);
|
|
g[4].push_back(6);
|
|
g[5].push_back(6);
|
|
|
|
std::deque < int >topo_order;
|
|
|
|
topological_sort(g, std::front_inserter(topo_order),
|
|
vertex_index_map(identity_property_map()));
|
|
|
|
int n = 1;
|
|
for (std::deque < int >::iterator i = topo_order.begin();
|
|
i != topo_order.end(); ++i, ++n)
|
|
std::cout << tasks[*i] << std::endl;
|
|
|
|
return EXIT_SUCCESS;
|
|
}
|