     |V|      |E|   list (ms)  matrix (ms)   list/(V+E) ns   matrix/V^2 ns
    1000     4000       0.037        0.778             7.38            0.78
    2000     8000       0.072        3.105             7.25            0.78
    4000    16000       0.139       12.263             6.94            0.77
    8000    32000       0.353       47.902             8.83            0.75
