. , (k-l)-ro :
Sk-1
= (Z1 + ... + Zk-1)/(k-l).
k-e
Sk = Sk-1(k-l)/k + Zk/k =
= (Z1 + ... + Zk-1)/(k-l)×(k-l)/k + Zk/k = (Z1 + ... + Zk-1)/k + Zk/k.
. , ­ k = 1, 2,..., N. , k = N
SN
= (Z1 + ... + ZN-1)/N + ZN/N = (Z1 + ... + ZN)/N.
, Z1, Z2, ..., ZN.
, data.

: dan: '
{<> <> </>}* data ,, 300000
{...................} data ,, 240000
/= <Zcpe> data ,, 120000
data , , 0
, .

໠ '
cls
( :) ? :
s
:= 0: k := 0 s = 0: k = 0
렠 do