Leetcode 308. Range Sum Query 2D - Mutable (binary index tree)

308. Range Sum Query 2D - Mutable

check Leetcode 307. Range Sum Query - Mutable (binary index tree)
https://www.youtube.com/watch?v=GaX7NcmqGOw
code
pattern: https://github.com/Jasondecode2020/Letscode/blob/main/pattern/binary-index-tree.ipynb
template: https://github.com/Jasondecode2020/Letscode/blob/main/template/binary-index-tree.md

Видео Leetcode 308. Range Sum Query 2D - Mutable (binary index tree) канала LetsCode