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If your query will not be affected with overlapped ranges like RMQ (i.e RMQ in range [1, 10] is the same of min( RMQ[1, 6], RMQ[4, 10]) ), then you can solve it in
O(1)
. But if your query will be affected with overlapped ranges like Range Sum Query, then you have to solve it inO(log(n))
as mentioned in hackerearth like.OK, I got it. Thanks for reply.