Interview Question Software Engineer / Developers
Country: India
Interview Type: Written Test
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I'm guessing that by -(107) <= x <= (107), you meant -(10^7) <= x <= (10^7), because otherwise the examples don't make sense. One very easy way to solve would be to just sort the array, and then look only at pairs of adjacent numbers. This has O(n log n) time complexity if implemented using an O(n log n) sort.
- eugene.yarovoi December 01, 2013