c++ - How to implement Binary Indexed Tree? -


i have read binary indexed trees efficient. couldn't more that. if knows that, please share knowledge.

this solution you. there direct algorithms available , explanation 1 see

this how author of blog has described binary indexed tree

we need sort of data structure make our algorithms faster. in article discuss binary indexed trees structure. according peter m. fenwick, structure first used data compression. used storing frequencies , manipulating cumulative frequency tables.


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