给定 $k$ 和 $n$，求第 $n$ 个正整数 $x$，使得 $x \cdot \underbrace{999 \dots 9}_{k}$ 的十进制表示中不包含任何数字 9。
仅一行，包含两个整数 $k$ 和 $n$ ($1 \le k \le 18, 1 \le n \le 10^{18}$)。
输出答案。
1 1
2
1 8
9
1 9
12
1 10
13
5 1
11112
5 84
11235
5 668
12345
5 733942
2281488
对于 $k = 1$，所有符合条件的数字序列以 $2, 3, 4, 5, 6, 7, 8, 9, 12, 13, \dots$ 开头。
| ID | Type | Status | Title | Posted By | Last Updated | Actions |
|---|---|---|---|---|---|---|
| #548 | Editorial | Open | 集训队作业 解题报告 by 朱鹏睿 | Qingyu | 2026-01-02 22:09:16 | Download |
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