>>> from coprimers import crea_graf_coprimers
>>> from ex1 import veins_menors

>>> c = set(range(2, 10))
>>> g = crea_graf_coprimers(c)

>>> veins_menors(g, 6) == {5}
True
>>> veins_menors(g, 7) == {2, 3, 4, 5, 6}
True
>>> veins_menors(g, 8) == {3, 5, 7}
True

----

>>> c = set(range(5, 20))
>>> g = crea_graf_coprimers(c)
>>> veins_menors(g, 15) == {8, 11, 13, 14, 7}
True
>>> veins_menors(g, 19) == {5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18}
True
>>> veins_menors(g, 11) == {5, 6, 7, 8, 9, 10}
True
>>> veins_menors(g, 12) == {11, 5, 7}
True

>>> c = set(range(50, 100))
>>> g = crea_graf_coprimers(c)
>>> veins_menors(g, 60) == {59, 53}
True
>>> veins_menors(g, 59) == {50, 51, 52, 53, 54, 55, 56, 57, 58}
True
>>> veins_menors(g, 80) == {67, 69, 71, 73, 77, 79, 51, 53, 57, 59, 61, 63}
True
>>> veins_menors(g, 97) == {50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96}
True
>>> veins_menors(g, 96) == {65, 67, 71, 73, 77, 79, 83, 53, 85, 55, 89, 91, 59, 61, 95}
True