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Save The City

A Russian spy has planted a series of bombs in a city in the following positions: A1, A2, …, AN. Your mission as detective Ethan Hunt is to find a pair of integers Au, Av (1 ≤  u v ≤ N) such that (Au and Av) is as large as possible, since he has been tipped that the bombs in these positions will explode first. AND is a bit-wise operation which is corresponding to & in C++ and Java. Input - Th

HINT LADDERno hints yet
L1 Observation
L2 Technique
L3 Approach
L4 Pseudo-code
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L5 Full solution
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solution.cppC++17

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