Arrangement of balls

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You and your friend are collecting balls, balls collected by you will marked 0 and your friend is 1. Now you have to arrange the balls in a 1D box such that left side of box contains all 0 marked balls. ###Input - First line of input contains T, the number of test cases. - Second line of input contains N, the number of balls. - Third line of the test case contains N space-separated integers, A

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solution.cppC++17

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