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ONM 2010 Calarasi Problema 2
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ONM 2010 Calarasi Problema 2
Posted:
Sat May 29, 2010 10:22 pm
by
Andi Brojbeanu
Determinati patratele perfecte nenule care se pot scrie sub forma
\( \overline{abcd}-\overline{dcba} \)
, unde
\( a, b, c \)
si
\( d \)
sunt cifre nenule si
\( b<c \)
.