树上顶点的平均距离 #include <bits/stdc++.h>using namespace std;#define ll long longconst int maxn=10010;struct node{ int v,w;}a,b;vector<node>tree[maxn];int sum[maxn],n;ll dp[maxn];void dfs(in... 树形dp 2024-01-24 125 点赞 1 评论 189 浏览
