| Time Limit | $1$ 秒/Second(s) | Memory Limit | $128$ 兆字节/Megabyte(s) |
| 提交总数 | $1$ | 正确数量 | $20$ | "
| 裁判形式 | 标准裁判/Standard Judge | 我的状态 | 尚未尝试 |
| 难度 | 分类标签 | 数学 |
Let's call a positive integer n ordinary if in the decimal notation all its digits are the same. For example, 1, 2 and 99 are ordinary numbers, but 719 and 2021 are not ordinary numbers.
For a given number n, find the number of ordinary numbers among the numbers from 1 to n.
The first line contains one integer t (1≤t≤104). Then t test cases follow.
Each test case is characterized by one integer n (1≤n≤109).
For each test case output the number of ordinary numbers among numbers from 1 to n.
6
1
2
3
4
5
100
1
2
3
4
5
18
| 本题记录 | 用 户（点击查看用户） | 运行号（点击购买题解） | 时 间 |
|---|---|---|---|
| 算法最快[$21 $ms] | 只能过个样例~~~ | 750962 | 2021-05-17 17:26:19 |
| 内存最少[$2080 $KB] | 我想睡觉 | 803054 | 2021-12-24 12:57:30 |
| 第一AC | 只能过个样例~~~ | 750962 | 2021-05-17 17:26:19 |
| 第一挑战 | 只能过个样例~~~ | 750962 | 2021-05-17 17:26:19 |
| 竞赛编号 | 竞赛名称 | 竞赛时间 | 访问比赛 |
|---|---|---|---|
| 1671 | 2021年下学年第12周周赛 | 2021-11-20 19:00:00 | 请登录 |