Adding edges one by one
addEdge ( adj , 0 , 1 ) ; addEdge ( adj , 0 , 4 ) ; addEdge ( adj , 1 , 2 ) ; addEdge ( adj , 1 , 3 ) ; addEdge ( adj , 1 , 4 ) ; addEdge ( adj , 2 , 3 ) ; addEdge ( adj , 3 , 4 ) ; printGraph ( adj , V ) ; return 0 ; }