Appendix: Full C++ implementation of zkw segment tree for sum queries
The ZKW segment tree works by maintaining a balance between the value and lazy attributes of each node. When an update is made to a range, the lazy attribute of the corresponding node is updated. Then, when a query is made, the lazy attribute is propagated to the child nodes, and the value attribute is updated accordingly. zkw线段树
这是一篇关于 的完整科普教程文章。 Appendix: Full C++ implementation of zkw segment tree
我们让 l 和 r 不断向上跳，直到它们成为兄弟节点（即相遇）。 when a query is made