A15663. Extremely Round
编程题
普及/提高-
知识点
题目描述
Let's call a positive integer extremely round if it has only one non-zero digit. For example, $5000$ , $4$ , $1$ , $10$ , $200$ are extremely round integers; $42$ , $13$ , $666$ , $77$ , $101$ are not.
You are given an integer $n$ . You have to calculate the number of extremely round integers $x$ such that $1 \le x \le n$ .
You are given an integer $n$ . You have to calculate the number of extremely round integers $x$ such that $1 \le x \le n$ .
输入格式
The first line contains one integer $t$ ( $1 \le t \le 10^4$ ) — the number of test cases.
Then, $t$ lines follow. The $i$ -th of them contains one integer $n$ ( $1 \le n \le 999999$ ) — the description of the $i$ -th test case.
Then, $t$ lines follow. The $i$ -th of them contains one integer $n$ ( $1 \le n \le 999999$ ) — the description of the $i$ -th test case.
输出格式
For each test case, print one integer — the number of extremely round integers $x$ such that $1 \le x \le n$ .
输入输出样例
输入 #1
5 9 42 13 100 111
输出 #1
9 13 10 19 19