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/* -*- mode: C -*- */
/*
IGraph library.
Copyright (C) 2006 Gabor Csardi <csardi@rmki.kfki.hu>
MTA RMKI, Konkoly-Thege Miklos st. 29-33, Budapest 1121, Hungary
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
02110-1301 USA
*/
#include <igraph.h>
#include <sys/time.h>
#include <sys/resource.h>
float timer ()
{
struct rusage r;
getrusage(0, &r);
return (float)(r.ru_utime.tv_sec+r.ru_utime.tv_usec/(float)1000000);
}
int main() {
igraph_t g;
igraph_real_t flow;
igraph_vector_t capacity;
long int i;
igraph_integer_t source, target;
FILE *infile;
float t;
igraph_vector_init(&capacity, 0);
/***************/
infile=fopen("ak-4102.max", "r");
igraph_read_graph_dimacs(&g, infile, 0, 0, &source, &target, &capacity,
IGRAPH_DIRECTED);
fclose(infile);
t=timer();
igraph_maxflow_value(&g, &flow, source, target, &capacity);
t=timer()-t;
/* printf("4102: %g (time %.10f)\n", flow, t); */
if (flow != 8207) {
return 1;
}
igraph_destroy(&g);
/***************/
/* /\***************\/ */
/* infile=fopen("ak-8198.max", "r"); */
/* igraph_read_graph_dimacs(&g, infile, 0, 0, &source, &target, &capacity, */
/* IGRAPH_DIRECTED); */
/* fclose(infile); */
/* t=timer(); */
/* igraph_maxflow_value(&g, &flow, source, target, &capacity); */
/* t=timer()-t; */
/* printf("8198: %g (time %.10f)\n", flow, t); */
/* igraph_destroy(&g); */
/* /\***************\/ */
/* /\***************\/ */
/* infile=fopen("ak-16390.max", "r"); */
/* igraph_read_graph_dimacs(&g, infile, 0, 0, &source, &target, &capacity, */
/* IGRAPH_DIRECTED); */
/* fclose(infile); */
/* t=timer(); */
/* igraph_maxflow_value(&g, &flow, source, target, &capacity); */
/* t=timer()-t; */
/* printf("16390: %g (time %.10f)\n", flow, t); */
/* igraph_destroy(&g); */
/* /\***************\/ */
/* /\***************\/ */
/* infile=fopen("ak-32774.max", "r"); */
/* igraph_read_graph_dimacs(&g, infile, 0, 0, &source, &target, &capacity, */
/* IGRAPH_DIRECTED); */
/* fclose(infile); */
/* t=timer(); */
/* igraph_maxflow_value(&g, &flow, source, target, &capacity); */
/* t=timer()-t; */
/* printf("32774: %g (time %.10f)\n", flow, t); */
/* igraph_destroy(&g); */
/* /\***************\/ */
/* /\***************\/ */
/* infile=fopen("ak-65542.max", "r"); */
/* igraph_read_graph_dimacs(&g, infile, 0, 0, &source, &target, &capacity, */
/* IGRAPH_DIRECTED); */
/* fclose(infile); */
/* t=timer(); */
/* igraph_maxflow_value(&g, &flow, source, target, &capacity); */
/* t=timer()-t; */
/* printf("65542: %g (time %.10f)\n", flow, t); */
/* igraph_destroy(&g); */
/* /\***************\/ */
igraph_vector_destroy(&capacity);
return 0;
}
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