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itm L. mitm, L. , . . , , , . , L :
1 mitm=L[0]
2 L
2.1 itm mitm, mitm itm.
3 mitm
mitm , . [1]:
- ( ),
- .
.
. , , . =(a1,a2,..,an). () .
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1 ai ai+1, , 1£i£n-1.
. () . () ( ). .
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1 i=1 n 1
1.1 i- n- i-
. . i , , i+1- . i+1- , . .
={a1,a2,..,an}. () .
1 i=2 n 1 ( )
1.1 =i j=i-1. ( )
1.2 j>0 j>x ( )
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1.2.2 aj+1 =
1.2.3 j=j-1
3.1 .
3.2 , , , ( ), . , . 1- , 2- , 3- .
3.3 .
i | -1 | -2 | |
1- | 2- | ||
1- | 2- | ||
1- | 3- | ||
1- | 3- | ||
2- | 3- | ||
2- | 3- | ||
1- | 2- | ||
1- | 2- | ||
1- | 3- | ||
1- | 3- | ||
2- | 3- | ||
2- | 3- | ||
1- | 2- | ||
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1- | 3- | ||
1- | 3- | ||
2- | 3- | ||
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1 . . 3 .
2 . Python 3. . . . .: ‑, 2009. 608 ., .
3 https://pythonworld.ru/samouchitel-python - -
1
2 .
4 .
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5 .