Zkw线段树 [VERIFIED]

1 ) | 1 . 2. Key Advantages vs. Traditional Segment Trees Feature Traditional Segment Tree zkw Segment Tree Logic Flow Recursive (Top-Down) Iterative (Bottom-Up) Time Constant Large (function call overhead) Very small (bitwise ops only) Code Length Often 50+ lines Can be as short as 10-20 lines Space 4

// 向上回溯更新祖先节点 for (p >>= 1; p; p >>= 1) tree[p] = tree[p << 1] + tree[p << 1 zkw线段树

void update(int p, T val) p += N; tree[p] = val; while (p >>= 1) tree[p] = tree[2*p] + tree[2*p+1]; 1 ) | 1

In the world of competitive programming, data structures play a vital role in solving complex problems efficiently. One such data structure that has gained significant attention in recent years is the ZKW (Zhang-Kong-Wu) segment tree. Named after its creators, this powerful tool has revolutionized the way programmers approach range query problems. = 1) tree[p] = tree[p &lt