codeforces#P1821A. Matching
Matching
Description
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.
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.
For each test case, print one integer — the number of positive (strictly greater than $0$) integers that match the template.
Input
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.
Output
For each test case, print one integer — the number of positive (strictly greater than $0$) integers that match the template.
8
??
?
0
9
03
1??7
?5?
9??99
90
9
0
1
0
100
90
100