func_code_string: #include <bits/stdc++.h>   const int N = 2e5 + 5;   const int inf = 2e9;   struct Edge {     int u, v, cost, isin;     int ind;     bool operator<(const Edge& x) const { return cost < x.cost; }   };   std::vector<Edge> e;   std::vector<std::pair<int, int> > l[N];   int tata[N], sz[N], ans[N];   int findDaddy(int node) {     if (node == tata[node]) return node;     return tata[node] = findDaddy(tata[node]);   }   bool areConnected(int u, int v) { return (findDaddy(u) == findDaddy(v)); }   void connect(int u, int v) {     if (sz[findDaddy(u)] > sz[findDaddy(v)]) {       sz[findDaddy(u)] += sz[findDaddy(v)];       tata[findDaddy(v)] = findDaddy(u);     } else {       sz[findDaddy(v)] += sz[findDaddy(u)];       tata[findDaddy(u)] = findDaddy(v);     }   }   int rmq[21][N], mx[21][N], h[N], mn[N];   void dfs(int node, int from = 0, int c = 0) {     rmq[0][node] = from, mx[0][node] = c, h[node] = h[from] + 1;     for (std::pair<int, int> to : l[node])       if (to.first != from) dfs(to.first, node, to.second);   }   std::pair<int, int> maxlca(int from, int to) {     int sol = 0;     if (h[from] < h[to]) std::swap(from, to);     for (int i = 20; i >= 0; i--)       if (h[from] - (1 << i) >= h[to]) {         sol = (((sol) > (mx[i][from])) ? (sol) : (mx[i][from]));         from = rmq[i][from];       }     if (from == to) return {from, sol};     for (int i = 20; i >= 0; i--)       if (rmq[i][from] != rmq[i][to]) {         sol = (((sol) >                 ((((mx[i][from]) > (mx[i][to])) ? (mx[i][from]) : (mx[i][to]))))                    ? (sol)                    : ((((mx[i][from]) > (mx[i][to])) ? (mx[i][from])                                                      : (mx[i][to]))));         from = rmq[i][from], to = rmq[i][to];       }     sol =         (((sol) > ((((mx[0][from]) > (mx[0][to])) ? (mx[0][from]) : (mx[0][to]))))              ? (sol)              : ((((mx[0][from]) > (mx[0][to])) ? (mx[0][from]) : (mx[0][to]))));     return {rmq[0][from], sol};   }   void update(int from, int to, int cost) {     to = findDaddy(to), from = findDaddy(from);     while (from != to) {       if (h[from] < h[to]) std::swap(from, to);       mn[from] = cost - 1;       tata[from] = rmq[0][from];       from = findDaddy(from);     }   }   int main() {     int n, m, from, to, cost;     std::cin >> n >> m;     for (int i = 1; i <= m; i++) {       std::cin >> from >> to >> cost;       e.push_back({from, to, cost, 0, i});     }     for (int i = 1; i <= n; i++) tata[i] = i, sz[i] = 1;     std::sort(e.begin(), e.end());     for (Edge& curr : e) {       if (!areConnected(curr.u, curr.v)) {         l[curr.u].push_back({curr.v, curr.cost});         l[curr.v].push_back({curr.u, curr.cost});         connect(curr.u, curr.v);         curr.isin = 1;       }     }     dfs(1);     for (int i = 1; i <= 20; i++)       for (int j = 1; j <= n; j++) {         rmq[i][j] = rmq[i - 1][rmq[i - 1][j]];         mx[i][j] = (((mx[i - 1][j]) > (mx[i - 1][rmq[i - 1][j]]))                         ? (mx[i - 1][j])                         : (mx[i - 1][rmq[i - 1][j]]));       }     for (Edge& curr : e)       if (!curr.isin) {         std::pair<int, int> x = maxlca(curr.u, curr.v);         ans[curr.ind] = x.second - 1;       }     for (int i = 1; i <= n; i++) tata[i] = i, mn[i] = inf;     for (Edge& curr : e)       if (!curr.isin) update(curr.u, curr.v, curr.cost);     for (Edge& curr : e) {       if (!curr.isin) continue;       if (h[curr.u] < h[curr.v]) std::swap(curr.u, curr.v);       ans[curr.ind] = -1;       if (rmq[0][curr.u] == curr.v and mn[curr.u] != inf)         ans[curr.ind] = mn[curr.u];     }     for (int i = 1; i <= m; i++) std::cout << ans[i] <<    ;   }   