here I am checking for each bit the number of set bits in the array for that bit and if it is not multiple of 3 it means our result has set the bit at this bit position so I am making that bit like a set bit by taking or, could pls tell the possible reason why this method is not working for
input = [-2,-2,1,1,4,1,4,4,-4,-2].
Unique Number (BIT_Mask)
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