Abdelrahman Said
57 lines
1.8 KiB
C
57 lines
1.8 KiB
C
/*
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igraph library.
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Copyright (C) 2024 The igraph development team <igraph@igraph.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include <igraph.h>
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int main(void) {
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igraph_t graph;
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igraph_real_t result;
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igraph_int_t from, to;
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igraph_vector_int_t path, path_edge;
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/* Initialize the library. */
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igraph_setup();
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igraph_barabasi_game(&graph, 30, /*power=*/ 1, 30, 0, 0, /*A=*/ 1,
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IGRAPH_DIRECTED, IGRAPH_BARABASI_BAG,
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/*start_from=*/ NULL);
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igraph_diameter(&graph, NULL, &result, NULL, NULL, NULL, NULL, IGRAPH_UNDIRECTED, 1);
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/* printf("diameter: %g\n", result); */
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igraph_destroy(&graph);
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igraph_ring(&graph, 10, IGRAPH_DIRECTED, 0, 0);
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igraph_vector_int_init(&path, 0);
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igraph_vector_int_init(&path_edge, 0);
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igraph_diameter(&graph, NULL, &result, &from, &to, &path, &path_edge, IGRAPH_DIRECTED, 1);
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printf(
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"diameter: %g, from %" IGRAPH_PRId " to %" IGRAPH_PRId "\n",
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result, from, to
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);
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igraph_vector_int_print(&path);
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igraph_vector_int_print(&path_edge);
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igraph_vector_int_destroy(&path);
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igraph_vector_int_destroy(&path_edge);
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igraph_destroy(&graph);
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return 0;
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}
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