Create main loop for dfs

main.cc

@@ -122,11 +122,19 @@ class World
 
                         bool explored[size];
 
+                        stack<unsigned int> open;
+
                         for (unsigned int k(0); k < size; k ++)
                             explored[k] = false;
 
                         explored[s0] = true;
 
+                        do {
+
+                            // todo ...
+
+                        } while (!r && !open.empty());
+
 			return r;
 		} 
 };