func_code_string: #include <bits/stdc++.h>   using namespace std;   const int M = 1e5 + 5;   int n, k;   vector<pair<int, int> > g[M];   int ans;   int dp[M][2];   void dfs(int u, int Pa) {     vector<pair<int, int> > ch;     for (auto p : g[u]) {       int v = p.first, w = p.second;       if (v == Pa) continue;       dfs(v, u);       ch.push_back(make_pair(dp[v][0] + w, dp[v][1] + w));     }     bool flag = ch.size() > 0;     if (flag) {       sort(ch.begin(), ch.end(), [&](pair<int, int> a, pair<int, int> b) {         return a.second > b.second;       });     }     for (int i = 0; i < k - 1 && i < ch.size(); i++) {       dp[u][1] += ch[i].second;     }     if (ch.size() <= k) {       for (auto p : ch) {         dp[u][0] += p.second;       }       if (flag) {         sort(ch.begin(), ch.end(), [&](pair<int, int> a, pair<int, int> b) {           return a.first - a.second > b.first - b.second;         });         dp[u][0] += ch[0].first - ch[0].second;       }     } else {       int max_val = -1e9;       for (int i = k; i < ch.size(); i++) {         max_val = max(max_val, ch[i].first);       }       int sum = 0;       for (int i = 0; i < k; i++) {         sum += ch[i].second;       }       for (int i = 0; i < k; i++) {         dp[u][0] = max(dp[u][0], sum - ch[i].second + max(max_val, ch[i].first));       }     }   }   int main() {     scanf( %d%d , &n, &k);     for (int i = 1; i < n; i++) {       int u, v, c;       scanf( %d%d%d , &u, &v, &c);       u++, v++;       g[u].push_back(make_pair(v, c));       g[v].push_back(make_pair(u, c));     }     dfs(1, 0);     printf( %d n , dp[1][0]);   }   