Function chromatic_number 

pub fn chromatic_number(reader: impl Read, writer: impl Write)

✅ AC 65ms

problem here

Detail

Case Name	Status	Exec Time
example_00	AC	0 ± 0 ms
example_01	AC	31 ± 1 ms
random_00	AC	0 ± 0 ms
random_01	AC	0 ± 0 ms
random_02	AC	0 ± 0 ms
random_03	AC	0 ± 0 ms
random_04	AC	41 ± 0 ms
random_05	AC	0 ± 0 ms
random_06	AC	0 ± 0 ms
random_07	AC	24 ± 0 ms
random_08	AC	0 ± 0 ms
random_09	AC	0 ± 0 ms
big_00	AC	3 ± 0 ms
big_01	AC	8 ± 0 ms
big_02	AC	41 ± 1 ms
big_03	AC	4 ± 0 ms
big_04	AC	42 ± 1 ms
big_05	AC	9 ± 0 ms
big_06	AC	9 ± 0 ms
big_07	AC	25 ± 0 ms
big_08	AC	42 ± 1 ms
big_09	AC	3 ± 0 ms
clique_cycle_00	AC	52 ± 1 ms
clique_cycle_01	AC	52 ± 0 ms
clique_cycle_02	AC	40 ± 1 ms
clique_cycle_03	AC	65 ± 0 ms