A15941. Matching
编程题
普及/提高-
知识点
题目描述
An integer template is a string consisting of digits and/or question marks.
A positive (strictly greater than $0$ ) integer matches the integer template if it is possible to replace every question mark in the template with a digit in such a way that we get the decimal representation of that integer without any leading zeroes.
For example:
- $42$ matches 4?;
- $1337$ matches ????;
- $1337$ matches 1?3?;
- $1337$ matches 1337;
- $3$ does not match ??;
- $8$ does not match ???8;
- $1337$ does not match 1?7.
You are given an integer template consisting of at most $5$ characters. Calculate the number of positive (strictly greater than $0$ ) integers that match it.
A positive (strictly greater than $0$ ) integer matches the integer template if it is possible to replace every question mark in the template with a digit in such a way that we get the decimal representation of that integer without any leading zeroes.
For example:
- $42$ matches 4?;
- $1337$ matches ????;
- $1337$ matches 1?3?;
- $1337$ matches 1337;
- $3$ does not match ??;
- $8$ does not match ???8;
- $1337$ does not match 1?7.
You are given an integer template consisting of at most $5$ characters. Calculate the number of positive (strictly greater than $0$ ) integers that match it.
输入格式
The first line contains one integer $t$ ( $1 \le t \le 2 \cdot 10^4$ ) — the number of test cases.
Each test case consists of one line containing the string $s$ ( $1 \le |s| \le 5$ ) consisting of digits and/or question marks — the integer template for the corresponding test case.
Each test case consists of one line containing the string $s$ ( $1 \le |s| \le 5$ ) consisting of digits and/or question marks — the integer template for the corresponding test case.
输出格式
For each test case, print one integer — the number of positive (strictly greater than $0$ ) integers that match the template.
输入输出样例
输入 #1
8 ?? ? 0 9 03 1??7 ?5? 9??99
输出 #1
90 9 0 1 0 100 90 100