4 ms·
When making my implementation, the math felt unintuitive. https://www.nayuki.io/page/binary-indexed-tree https://www.nayuki.io/page/binary-indexed-tree
by nayuki 2y ago
When making my implementation, the math felt unintuitive. https://www.nayuki.io/page/binary-indexed-tree https://www.nayuki.io/page/binary-indexed-tree