A14061 | $Unique Number$

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题目描述

You are given a positive number $x$ . Find the smallest positive integer number that has the sum of digits equal to $x$ and all digits are distinct (unique).

The first line contains a single positive integer $t$ ( $1 \le t \le 50$ ) — the number of test cases in the test. Then $t$ test cases follow. Each test case consists of a single integer number $x$ ( $1 \le x \le 50$ ).

Output $t$ answers to the test cases: - if a positive integer number with the sum of digits equal to $x$ and all digits are different exists, print the smallest such number; - otherwise print -1.

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C++ 编辑器

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