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Differential D5594 Diff 18104 extern/quadriflow/3rd/lemon-1.3.1/test/unionfind_test.cc

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extern/quadriflow/3rd/lemon-1.3.1/test/unionfind_test.cc

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/* -*- mode: C++; indent-tabs-mode: nil; -*-
*
* This file is a part of LEMON, a generic C++ optimization library.
*
* Copyright (C) 2003-2009
* 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 <lemon/list_graph.h>
#include <lemon/maps.h>
#include <lemon/unionfind.h>
#include "test_tools.h"
using namespace lemon;
using namespace std;
typedef UnionFindEnum<ListGraph::NodeMap<int> > UFE;
int main() {
ListGraph g;
ListGraph::NodeMap<int> base(g);
UFE U(base);
vector<ListGraph::Node> n;
for(int i=0;i<20;i++) n.push_back(g.addNode());
U.insert(n[1]);
U.insert(n[2]);
check(U.join(n[1],n[2]) != -1, "Something is wrong with UnionFindEnum");
U.insert(n[3]);
U.insert(n[4]);
U.insert(n[5]);
U.insert(n[6]);
U.insert(n[7]);
check(U.join(n[1],n[4]) != -1, "Something is wrong with UnionFindEnum");
check(U.join(n[2],n[4]) == -1, "Something is wrong with UnionFindEnum");
check(U.join(n[3],n[5]) != -1, "Something is wrong with UnionFindEnum");
U.insert(n[8],U.find(n[5]));
check(U.size(U.find(n[4])) == 3, "Something is wrong with UnionFindEnum");
check(U.size(U.find(n[5])) == 3, "Something is wrong with UnionFindEnum");
check(U.size(U.find(n[6])) == 1, "Something is wrong with UnionFindEnum");
check(U.size(U.find(n[2])) == 3, "Something is wrong with UnionFindEnum");
U.insert(n[9]);
U.insert(n[10],U.find(n[9]));
check(U.join(n[8],n[10]) != -1, "Something is wrong with UnionFindEnum");
check(U.size(U.find(n[4])) == 3, "Something is wrong with UnionFindEnum");
check(U.size(U.find(n[9])) == 5, "Something is wrong with UnionFindEnum");
check(U.size(U.find(n[8])) == 5, "Something is wrong with UnionFindEnum");
U.erase(n[9]);
U.erase(n[1]);
check(U.size(U.find(n[10])) == 4, "Something is wrong with UnionFindEnum");
check(U.size(U.find(n[2])) == 2, "Something is wrong with UnionFindEnum");
U.erase(n[6]);
U.split(U.find(n[8]));
check(U.size(U.find(n[4])) == 2, "Something is wrong with UnionFindEnum");
check(U.size(U.find(n[3])) == 1, "Something is wrong with UnionFindEnum");
check(U.size(U.find(n[2])) == 2, "Something is wrong with UnionFindEnum");
check(U.join(n[3],n[4]) != -1, "Something is wrong with UnionFindEnum");
check(U.join(n[2],n[4]) == -1, "Something is wrong with UnionFindEnum");
check(U.size(U.find(n[4])) == 3, "Something is wrong with UnionFindEnum");
check(U.size(U.find(n[3])) == 3, "Something is wrong with UnionFindEnum");
check(U.size(U.find(n[2])) == 3, "Something is wrong with UnionFindEnum");
U.eraseClass(U.find(n[4]));
U.eraseClass(U.find(n[7]));
return 0;
}