Check whether the count sum of small [ v ] and count is the same as the total back edges and if the vertex v can be removed
if ( ( countAdj [ v ] + small [ v ] == totBackEdges ) and isPossible [ v ] != 0 ) : NEW_LINE INDENT node = v ; NEW_LINE DEDENT if ( node != - 1 ) : NEW_LINE INDENT break ; NEW_LINE DEDENT return node ; NEW_LINE