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+/* -*- mode: C++; indent-tabs-mode: nil; -*-
+ *
+ * This file is a part of LEMON, a generic C++ optimization library.
+ *
+ * Copyright (C) 2003-2010
+ * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
+ * (Egervary Research Group on Combinatorial Optimization, EGRES).
+ *
+ * Permission to use, modify and distribute this software is granted
+ * provided that this copyright notice appears in all copies. For
+ * precise terms see the accompanying LICENSE file.
+ *
+ * This software is provided "AS IS" with no warranty of any kind,
+ * express or implied, and with no claim as to its suitability for any
+ * purpose.
+ *
+ */
+
+#include <sstream>
+
+#include <lemon/smart_graph.h>
+#include <lemon/adaptors.h>
+#include <lemon/concepts/digraph.h>
+#include <lemon/concepts/maps.h>
+#include <lemon/lgf_reader.h>
+#include <lemon/hao_orlin.h>
+
+#include "test_tools.h"
+
+using namespace lemon;
+using namespace std;
+
+const std::string lgf =
+ "@nodes\n"
+ "label\n"
+ "0\n"
+ "1\n"
+ "2\n"
+ "3\n"
+ "4\n"
+ "5\n"
+ "@edges\n"
+ " cap1 cap2 cap3\n"
+ "0 1 1 1 1 \n"
+ "0 2 2 2 4 \n"
+ "1 2 4 4 4 \n"
+ "3 4 1 1 1 \n"
+ "3 5 2 2 4 \n"
+ "4 5 4 4 4 \n"
+ "5 4 4 4 4 \n"
+ "2 3 1 6 6 \n"
+ "4 0 1 6 6 \n";
+
+void checkHaoOrlinCompile()
+{
+ typedef int Value;
+ typedef concepts::Digraph Digraph;
+
+ typedef Digraph::Node Node;
+ typedef Digraph::Arc Arc;
+ typedef concepts::ReadMap<Arc, Value> CapMap;
+ typedef concepts::WriteMap<Node, bool> CutMap;
+
+ Digraph g;
+ Node n;
+ CapMap cap;
+ CutMap cut;
+ Value v;
+
+ HaoOrlin<Digraph, CapMap> ho_test(g, cap);
+ const HaoOrlin<Digraph, CapMap>&
+ const_ho_test = ho_test;
+
+ ho_test.init();
+ ho_test.init(n);
+ ho_test.calculateOut();
+ ho_test.calculateIn();
+ ho_test.run();
+ ho_test.run(n);
+
+ v = const_ho_test.minCutValue();
+ v = const_ho_test.minCutMap(cut);
+}
+
+template <typename Graph, typename CapMap, typename CutMap>
+typename CapMap::Value
+ cutValue(const Graph& graph, const CapMap& cap, const CutMap& cut)
+{
+ typename CapMap::Value sum = 0;
+ for (typename Graph::ArcIt a(graph); a != INVALID; ++a) {
+ if (cut[graph.source(a)] && !cut[graph.target(a)])
+ sum += cap[a];
+ }
+ return sum;
+}
+
+int main() {
+ SmartDigraph graph;
+ SmartDigraph::ArcMap<int> cap1(graph), cap2(graph), cap3(graph);
+ SmartDigraph::NodeMap<bool> cut(graph);
+
+ istringstream input(lgf);
+ digraphReader(graph, input)
+ .arcMap("cap1", cap1)
+ .arcMap("cap2", cap2)
+ .arcMap("cap3", cap3)
+ .run();
+
+ {
+ HaoOrlin<SmartDigraph> ho(graph, cap1);
+ ho.run();
+ ho.minCutMap(cut);
+
+ check(ho.minCutValue() == 1, "Wrong cut value");
+ check(ho.minCutValue() == cutValue(graph, cap1, cut), "Wrong cut value");
+ }
+ {
+ HaoOrlin<SmartDigraph> ho(graph, cap2);
+ ho.run();
+ ho.minCutMap(cut);
+
+ check(ho.minCutValue() == 1, "Wrong cut value");
+ check(ho.minCutValue() == cutValue(graph, cap2, cut), "Wrong cut value");
+ }
+ {
+ HaoOrlin<SmartDigraph> ho(graph, cap3);
+ ho.run();
+ ho.minCutMap(cut);
+
+ check(ho.minCutValue() == 1, "Wrong cut value");
+ check(ho.minCutValue() == cutValue(graph, cap3, cut), "Wrong cut value");
+ }
+
+ typedef Undirector<SmartDigraph> UGraph;
+ UGraph ugraph(graph);
+
+ {
+ HaoOrlin<UGraph, SmartDigraph::ArcMap<int> > ho(ugraph, cap1);
+ ho.run();
+ ho.minCutMap(cut);
+
+ check(ho.minCutValue() == 2, "Wrong cut value");
+ check(ho.minCutValue() == cutValue(ugraph, cap1, cut), "Wrong cut value");
+ }
+ {
+ HaoOrlin<UGraph, SmartDigraph::ArcMap<int> > ho(ugraph, cap2);
+ ho.run();
+ ho.minCutMap(cut);
+
+ check(ho.minCutValue() == 5, "Wrong cut value");
+ check(ho.minCutValue() == cutValue(ugraph, cap2, cut), "Wrong cut value");
+ }
+ {
+ HaoOrlin<UGraph, SmartDigraph::ArcMap<int> > ho(ugraph, cap3);
+ ho.run();
+ ho.minCutMap(cut);
+
+ check(ho.minCutValue() == 5, "Wrong cut value");
+ check(ho.minCutValue() == cutValue(ugraph, cap3, cut), "Wrong cut value");
+ }
+
+ return 0;
+}