THE SMART TRICK OF CIRCUIT WALK THAT NO ONE IS DISCUSSING

It is actually appropriate to highlight that every time a sequence cannot repeat nodes but is actually a shut sequence, the sole exception is the main and the last node, which need to be the same.In graph G, distance involving v1 and v2 is two. Because the shortest path among the two paths v1– v4– v2 and v1– v3– v5– v2 in between