AtCoder Regular Contest 173
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Problem Statement
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A positive integer $X$ is called a "Neq Number" if it satisfies the following condition:
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- When
$X$is written in decimal notation, no two adjacent characters are the same.
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For example, $1$, $173$, and $9090$ are Neq Numbers, while $22$ and $6335$ are not.
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You are given a positive integer $K$. Find the $K$-th smallest Neq Number.
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You have $T$ test cases to solve.
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Constraints
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$1 \leq T \leq 100$$1 \leq K \leq 10^{12}$- All input values are integers.
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Input
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The input is given from Standard Input in the following format:
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T
\mathrm{case}_1
\vdots
\mathrm{case}_T
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Each case is given in the following format:
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K
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Output
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Print $T$ lines. The $i$-th line should contain the answer for the $i$-th test case.
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样例
Input #1
3
25
148
998244353
Output #1
27
173
2506230721
For the first test case, here are the smallest $25$ Neq Numbers in ascending order:
- The nine integers from $1$ to $9$
- The nine integers from $10$ to $19$, excluding $11$
- The seven integers from $20$ to $27$, excluding $22$
Thus, the $25$-th smallest Neq Number is $27$.
题目信息
题面与样例版权归 AtCoder 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。