Diferente pentru problema/psir intre reviziile #9 si #8
Nu exista diferente intre titluri.
Diferente intre continut:
Cele $8$ subsiruri sunt:
$(P{~1~}, P{~2~}) = (1, 1)$
$(P{~1~}, P{~3~}) = (1, 5)$
$(P{~1~}, P{~4~}) = (1, 2)$
$(P{~1~}, P{~3~}, P{~4~}) = (1, 5, 2)$
$(P{~2~}, P{~3~}) = (1, 5)$
$(P{~2~}, P{~4~}) = (1, 2)$
$(P{~2~}, P{~3~}, P{~4~}) = (1, 5, 2)$
$(P{~3~}, P{~4~}) = (5, 2)$
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