Here is two implementation of this problem

Using Sparse Table: Submission Using Segment Tree: Submission

Time took by Sparse Table is 0.336 s ,where Segment Tree took 0.324 s. Memory took by Sparse Table is 8732 KB ,where Segment Tree took 3640 KB.

Problem is static,thats why Sparse Table should be fast!But here i couldn't see this..Where is the problem?Could anyone please find that out ?

Thanks in advance :)