PLAY WITH NUMBERS

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.Mr. chef is playing a game. He is given $N$ numbers to play. He has to find all possible number of arrangements with those numbers . now count those numbers $(Ni)$ that are follows the condition: If $10^r \leq N \leq 10*10^r $ then $Ni$ must have to follow this constraint $10^r \leq Ni \leq 10*10^r$ - $0 \leq r \leq 6$ ###Input: - First input is the number of test cases $T$. - $T$ lines

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solution.cppC++17

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