k	n	OrTools CS	OrTools PBPB
18	180	0.97910049	0.45459153
19	190	1.21349392	0.57409986
20	200	1.22166391	0.67846921
21	210	1.76077631	0.84761173
22	220	2.07639616	0.86511874
23	230	2.56889444	1.09937579
24	240	2.83782749	1.253775
25	250	4.28447137	1.32822119
26	260	4.6088885	1.57949548
27	270	6.83533114	1.76882676
28	280	8.8087095	1.9723048
29	290	10.31156523	2.46060911
30	300	16.0337499	2.47158087
31	310	16.47877043	3.0488782
32	320	26.09143021	3.22006025
33	330	47.76979045	3.66656391
34	340	55.42991324	3.82698882
35	350	84.82765437	4.74836571
36	360	125.09168248	5.9700492
37	370	151.49293962	5.98625689
38	380	155.38893679	7.23110673
39	390	466.53055483	8.85298817
40	400	528.90558559	10.42630422
41	410	537.93544269	11.5365298
42	420	1232.34613694	16.57892245
43	430	1937.71457997	17.71720681
44	440	NaN	23.82252881
45	450	NaN	31.92563951
46	460	NaN	38.90589868
47	470	NaN	44.69570542
48	480	NaN	75.40694728
49	490	NaN	85.82455652
50	500	NaN	121.24757599
51	510	NaN	144.98626821
52	520	NaN	243.0780522
53	530	NaN	363.36171102
54	540	NaN	695.46009463
55	550	NaN	645.68979835