Junior from Senior

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A Junior array $J$ of size $n$, and elements $J_1,J_2,J_3......J_n$. A senior array $S$ of size $2n$, and elements $S_1,S_2,S_3......S_2n$. For every element, $J_i$ in the array $J$ there exist $2$ elements in array S of the form $J_i + K$ and $J_i - K$ randomly in any position. You are given $n$ and array $S$. Find whether there exists an array $J$ for Given $S$ or not. ### Input - First line w

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solution.cppC++17

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