Shlok Loves Expectation

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One day Shlok saw an array $A$ of $N$ integers in his dream. So he started playing with the array since he loves arrays. He likes co-prime subsets , so he randomly chooses a **co-prime subset** and **sums** it . Now he wonders what is the **expected sum value** he can get doing this experiment. He is stuck in his dream of expectation and he cannot wake up till he finds the expected value. Sinc

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solution.cppC++17

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