Diferente pentru problema/matrita intre reviziile #13 si #14
Nu exista diferente intre titluri.
Diferente intre continut:
{(1, 1)}, {(1, 1), (1, 2)}, {(1, 1), (2, 1)}, {(1, 1), (1, 2), (2, 1)},
{(2, 2)}, {(2, 2), (1, 2)}, {(2, 2), (2, 1)}, {(2, 2), (1, 2), (2, 1)},
{(1, 2)}, {(2, 1)}, {(1, 2), (2, 1)}.
Nry considera ca o explicatie a ultimelor doua exemple ar fi inadecvat de lunga.
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