Agent Sidhant

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Sidhant is a secret agent working for an agency in which he is made to learn $N$ secret keys coded in hexadecimal each represented as $K[i]$ for $1<=i<=N$. These secret keys helps him distinguish between his companions and enemies. He meet with $Q$ persons and each person shares a query key with him represented as $ L[i] $ for $1<=i<=Q$. Each query key is such that it might be the prefix of zero o

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solution.cppC++17

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