3 |
2, |
|
1 |
2n |
1 |
2 |
1 |
bn |
1 |
2 |
bn×
|
3 |
2 |
3 |
2 |
1 |
2 |
bk |
ak |
1 |
2 |
1 |
bk |
1 |
2 |
1 |
ak |
1 |
2 |
1 |
bk |
1 |
2 |
1 |
akbk |
1 |
2 |
bn |
an |
1 |
2 |
bn |
an |
bn |
an |
1 |
2 |
bn |
an |
1 |
2 |
1 |
2 |
1 |
2n |
1 |
2n |
1 |
2n |
n+1 |
n+2 |
A.
| B.
| C.
| D.
|
n-
| ||
n-
|
A.a1,a50 | B.a1,a44 | C.a45,a44 | D.a45,a50 |
3 |
4 |
3 |
4 |
x |
2 |
1 |
2k |
1 |
2k-1 |
5 |
3×2n |
1 |
2n-1 |
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