Aladdin and the Return Journey Time Limit: 2000ms Memory Limit: 32768KB This problem will be judged on LightOJ. Original ID: 134864-bit integer IO format: %lld Java class name: Main Finally the Great Magical Lamp was in Aladdin's hand. Now he wa…
Finally the Great Magical Lamp was in Aladdin's hand. Now he wanted to return home. But he didn't want to take any help from the Genie because he thought that it might be another adventure for him. All he remembered was the paths he had taken to reac…
题目 Link 分析 典型的树链剖分题, 树链剖分学习资料 Code #include <bits/stdc++.h> using namespace std; const int maxn = 30000 + 131; struct Edge { int Next; int To; }edge[maxn<<1]; int Head[maxn], tot, n; ///以下是重链数据定义 int top[maxn]; //重链的顶点 int deep[maxn]; //树上节点的深…