1
20, 555
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. -10-01 ________________ _________________________
, ,
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, ,
2011
, 4 .
1. 33 R (-7,6) .
x [a, b] :
x:= a + ROUND((b-a)*RANDOM (100)/100).
, RANDOMIZE.
2. .
A = {a1, a2, a3, , an}
- .
3. [a/2;b/2] .
() . , .
4. .
, , .
.
.
1. , : n (2<=n<=100) [a, b] (b>=a).
2. .
3. 3 :
(Randomize ).
(c Randomize).
.
n [a, b].
: ( 1), ( 2) ( 3). ( 4) , .
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, .
, n=17, =-3, = 4. 17 -3 4 R .
1, 0, -3, 2, 0, -3, 4, 3, 2, 0, 0, 4, 0, -2, -1, -1, 1
. [n/2]+1 ( . ): [17/2] + 1 = [8,5] + 1 = 8 + 1 = 9.
x9 x10 x11 x12 x13 x14 x15 x16 x17
2 0 0 4 0 -2 -1 -1 1
: , .
= 3, 4*(-2)*(-1) = 8. Sg = .
Sg :
- ( = 0), , 0. Sg = 0.
- (, x16 = 1). , Sg = 0.