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Is it possible to implement Fenwick Tree for 2-dimensional query when n, m <= 100000?
Hello,
I have been looking for an implementation of 2D Fenwick Tree for n, m<= 100000 without using std::map but with no luck. I want to ask if it is possible to implement 2D Fenwick Tree using O(nlogn) memory and O(logn^2) per update?
Tutorials, ideas or papers, all are very welcome.
Thank you.
