CF1520B.Ordinary Numbers
普及/提高-
通过率:0%
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题目描述
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 .
输入格式
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 ).
输出格式
For each test case output the number of ordinary numbers among numbers from 1 to n .
输入输出样例
输入#1
6 1 2 3 4 5 100
输出#1
1 2 3 4 5 18