* Full author contact details are available in file CREDITS.
*/
-#include "config.h"
+#include <config.h>
+
#include "graph.h"
#include "format.h"
-#include <queue>
-#include <vector>
#include <algorithm>
-using std::queue;
using std::vector;
+using std::reverse;
int Graph::bfs_init(int s, bool clear_visited)