>>> import amistats
>>> l = ['pere', 'andreu', 'laia', 'ernest', 'jordina', 'angela', 'marga', 'nuria', 'laura', 'eric', 'sarah', 'robert', 'lluis', 'albert', 'loli']
>>> r = [('pere', 'andreu'), ('sarah', 'lluis'), ('sarah', 'eric'), ('sarah', 'albert'), ('sarah', 'laia'), ('sarah', 'marga'), ('sarah', 'laura'), ('laura', 'nuria'), ('laura', 'eric'), ('laura', 'ernest'), ('angela', 'robert'), ('eric', 'robert'), ('robert', 'loli')]
>>> g = amistats.relacions(l, r)
>>> sorted(g.nodes)
['albert', 'andreu', 'angela', 'eric', 'ernest', 'jordina', 'laia', 'laura', 'lluis', 'loli', 'marga', 'nuria', 'pere', 'robert', 'sarah']
>>> sorted(g.edges)
[('angela', 'robert'), ('eric', 'robert'), ('eric', 'sarah'), ('ernest', 'laura'), ('laia', 'sarah'), ('laura', 'eric'), ('laura', 'sarah'), ('marga', 'sarah'), ('nuria', 'laura'), ('pere', 'andreu'), ('robert', 'loli'), ('sarah', 'albert'), ('sarah', 'lluis')]
>>> amistats.amistats_directes(g, 'angela')
['robert']
>>> amistats.amistats_directes(g, 'eric')
['laura', 'robert', 'sarah']
>>> amistats.amistats_directes(g, 'laura')
['eric', 'ernest', 'nuria', 'sarah']
>>> amistats.son_amistat(g, 'sarah', 'eric')
(True, 0)
>>> amistats.son_amistat(g, 'sarah', 'pere')
(False, None)
>>> amistats.son_amistat(g, 'sarah', 'robert')
(True, 1)
>>> amistats.son_amistat(g, 'sarah', 'loli')
(True, 2)
>>> amistats.nombre_grups(g)
3
>>> amistats.solitaries(g)
['jordina']
>>> amistats.amistats_totals(g, 'jordina')
[]
>>> amistats.amistats_totals(g, 'pere')
['andreu']
>>> amistats.amistats_totals(g, 'andreu')
['pere']
>>> amistats.amistats_totals(g, 'laura')
['albert', 'angela', 'eric', 'ernest', 'laia', 'lluis', 'loli', 'marga', 'nuria', 'robert', 'sarah']
>>> amistats.amistats_totals(g, 'sarah')
['albert', 'angela', 'eric', 'ernest', 'laia', 'laura', 'lluis', 'loli', 'marga', 'nuria', 'robert']
>>> amistats.amistats_totals(g, 'eric')
['albert', 'angela', 'ernest', 'laia', 'laura', 'lluis', 'loli', 'marga', 'nuria', 'robert', 'sarah']
>>> import amistats
>>> g = amistats.relacions([], [])
>>> n = g.nodes
>>> len(n)
0
>>> g = amistats.relacions([], [('a', 'b')])
>>> n = g.nodes
>>> sorted(n)
['a', 'b']
>>> g.size() 
1
>>> g = amistats.relacions(['a'], [])
>>> list(g.nodes)
['a']
>>> list(g.edges)
[]


>>> l = range(11)
>>> r = [(0, 1), (1, 2), (2, 3), (3, 4), (6, 5), (6, 7), (6, 8)]
>>> g = amistats.relacions(l, r)
>>> sorted(g.nodes) == sorted(l)
True
>>> g.size() == len(r)
True
>>> all(map(lambda e: g.has_edge(*e), r))
True

>>> amistats.amistats_directes(g, 1)
[0, 2]
>>> amistats.amistats_directes(g, 6)
[5, 7, 8]
>>> amistats.amistats_directes(g, 4)
[3]

>>> amistats.son_amistat(g, 2, 3)
(True, 0)
>>> amistats.son_amistat(g, 1, 5)
(False, None)
>>> amistats.son_amistat(g, 0, 4)
(True, 3)
>>> amistats.son_amistat(g, 5, 8)
(True, 1)

>>> amistats.nombre_grups(g)
4

>>> amistats.solitaries(g)
[9, 10]

>>> amistats.amistats_totals(g, 10)
[]
>>> amistats.amistats_totals(g, 2)
[0, 1, 3, 4]
>>> amistats.amistats_totals(g, 7)
[5, 6, 8]
>>> amistats.amistats_totals(g, 3)
[0, 1, 2, 4]
>>> amistats.amistats_totals(g, 8)
[5, 6, 7]