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() 7 ()
32 119 [Aust.MC 1997] ( )
.5 4 3 2 1 654
14 ( ) 7( ) 3( ) 1()
[AMC10B 2002] (
n )
n 2 − 3n + 2 )
30 ( ) 3( )
2( ) 1()
n [AMC10A 2003] (
de 10d + e e d
9 + 2n−4
21 ( ) n . 15 ( )
17 ( ) ()
18 ( )
4n
4() 3( ) 2( ) 1 () )
( )
17 p +1 p
0 ()
3() 2( ) 1( ) (
6 p 2 ()
p 2 +11
7() 5( )
3( )
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