THE SMART TRICK OF CIRCUIT WALK THAT NO ONE IS DISCUSSING

In Eulerian path, each time we pay a visit to a vertex v, we walk by two unvisited edges with just one conclusion position as v. For that reason, all Center vertices in Eulerian Route have to have even diploma. For Eulerian Cycle, any vertex is often Center vertex, for that reason all vertices must have even diploma.So You should definitely check w