| 0 |
样例 |
- |
- |
- |
| 1 |
4 |
=2 |
10 |
| 2 |
2 |
20 |
1 |
1 |
| 3 |
100 |
1,2 |
| 4 |
1000 |
1−3 |
| 5 |
3×105 |
1−4 |
| 6 |
4 |
100 |
- |
- |
对于部分 ki,ai=2ki |
| 7 |
1000 |
6 |
- |
| 8 |
3×105 |
6,7 |
| 9 |
5 |
0 |
| 10 |
1000 |
0,1−4,9 |
| 11 |
1000 |
5 |
0,9 |
| 12 |
10 |
- |
0,1,9 |
| 13 |
50 |
0−2,9,12 |
| 14 |
7 |
100 |
0−3,6,9,12,13 |
| 15 |
300 |
0−3,6,9,12−14 |
| 16 |
8 |
1000 |
0−4,6,7,9−15 |
| 17 |
3000 |
0−4,6,7,9−16 |
| 18 |
6 |
1×104 |
0−4,6,7,9−17 |
| 19 |
7 |
3×104 |
0−4,6,7,9−18 |
| 20 |
1×105 |
0−4,6,7,9−19 |
| 21 |
6 |
3×105 |
0−20 |