Hello recently I attempted this problem: http://codeforces.me/contest/341/problem/D
I understand editorial's solution, but I found in comments a very nice solution, that appears it can be generalized to query sums or higher dimensions. Here is it.
Link to code : http://codeforces.me/contest/341/submission/4391987
I could only get a vague idea, but not much into detail of what's going on especially the code. With this being a 4 years old comment, I don't think it's a good idea to ask the guy who posted, but can anyone please clarify in an easier way, or provide similar problems/blogs to it? Perhaps how to solve this problem if it was for sum queries instead of xor using this technique.
Thanks.
See this.