zeta and Maeve

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zeta is in love with Maeve Wiley and since Valentines month is approaching zeta is thinking of buying two arrays for her. He prefers one of the arrays to be sorted. zeta is very fond of making strange terms, this time he came up with a term $Z = |A_i B_j - B_j A_k |$ Thanks to [Laila](https://www.codechef.com/teams/view/laila) and [mathmaniac](https://www.codechef.com/users/mathmaniac) Anukriti

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solution.cppC++17

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