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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) , .

, .

, 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 :

  1. ( = 0), , 0. Sg = 0.
  2. (, x16 = 1). , Sg = 0.




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