func_code_string: #include <bits/stdc++.h>   using namespace std;   int n;   long long v1, v2;   vector<int> sz;   vector<vector<pair<int, int>>> g;   void dfs(int u, int p, int c) {     sz[u] = 1;     for (auto &e : g[u]) {       int v = e.first;       if (v == p) continue;       dfs(v, u, e.second);       sz[u] += sz[v];     }     v1 += 1LL * (sz[u] & 1) * c;     v2 += 1LL * min(sz[u], 2 * n - sz[u]) * c;   }   int main() {     ios::sync_with_stdio(false);     cin.tie(NULL);     int T;     cin >> T;     while (T--) {       cin >> n;       g.assign(2 * n + 1, vector<pair<int, int>>());       for (int i = 1, a, b, c; i <= 2 * n - 1; ++i) {         cin >> a >> b >> c;         g[a].push_back({b, c});         g[b].push_back({a, c});       }       v1 = v2 = 0;       sz.assign(2 * n + 1, 0);       dfs(1, 0, 0);       cout << v1 <<     << v2 <<   n ;     }   }   