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, : , - , .. . .

- n2 , n - . , .

:

- . : " " , " " , .

, , .

a(1,i) -> a(k,i),


k - .

k-

a(1,i+k-1), i<=n-k+1

a(k,i)=

a(1,i-n+k-1), i>n-k+1

a(k,i) -> a(1,i).

: - a(1,j) k- . k- , a(1,j). ,

a(k,j-k+1), j>=k

a(1,j)=

a(k,n-k+j+1), j<k

k- , a(1,j),

a(1,j-k+1), j>=k

a(1,j) ->

a(1,n-k+j+1), j<k

, , .. 20*L, L - .

:

1. ( ) .

2. , .





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: 2016-12-05; !; : 571 |


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1456 - | 1423 -


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