MathDB
Problems
Contests
National and Regional Contests
PEN Problems
PEN P Problems
8
8
Part of
PEN P Problems
Problems
(1)
P 8
Source:
5/25/2007
Prove that any positive integer can be represented as an aggregate of different powers of
3
3
3
, the terms in the aggregate being combined by the signs
+
+
+
and
ā
-
ā
appropriately chosen.
algorithm
Additive Number Theory