func_code_string: #include <bits/stdc++.h>   using namespace std;   template <typename Value>   class feque {    protected:     vector<Value> data;       public:     feque() {}     feque(const feque &f) { data = f.data; }     feque(feque &&f) { this->data = move(f.data); }     feque(initializer_list<Value> list) { data = list; }     feque &operator=(const feque &f) {       data = f.data;       return *this;     }     feque &operator=(feque &&f) {       this->data = move(f.data);       return *this;     }     feque &operator=(initializer_list<Value> list) {       data = list;       return *this;     }     bool empty() const { return data.empty(); }     size_t size() { return data.size(); }     Value &front() { return data.back(); }     const Value &front() const { return data.back(); }     Value &back() { return data.front(); }     const Value &back() const { return data.front(); }     void push(const Value &value) { data.push_back(value); }     void pop() { data.pop_back(); }     typename vector<int>::reverse_iterator begin() { return data.rbegin(); }     typename vector<int>::reverse_iterator end() { return data.rend(); }     Value &operator[](const int &index) { return data[data.size() - 1 - index]; }   };   const int MAX_N = 1e6;   const int ROOT = 1;   int n;   array<vector<int>, MAX_N + 1> adjacency_list;   array<feque<int>, MAX_N + 1> depth_array;   array<int, MAX_N + 1> dominant_index;   void make_adjacent(const int &v, const int &u) {     adjacency_list[v].push_back(u);     adjacency_list[u].push_back(v);   }   bool has_child(const int &vertex) {     return (vertex != ROOT and adjacency_list[vertex].size() > 1) or            (vertex == ROOT and not adjacency_list[ROOT].empty());   }   void compute_depth_array(const int &vertex, const int &parent = -1) {     int deepest_child;     if (has_child(vertex)) {       deepest_child = -1;       for (const int &adjacent : adjacency_list[vertex]) {         if (adjacent != parent) {           compute_depth_array(adjacent, vertex);           if (deepest_child == -1 or               depth_array[deepest_child].size() < depth_array[adjacent].size())             deepest_child = adjacent;         }       }       dominant_index[vertex] =           (depth_array[deepest_child][dominant_index[deepest_child]] > 1                ? dominant_index[deepest_child] + 1                : 0);       swap(depth_array[vertex], depth_array[deepest_child]);       depth_array[vertex].push(1);       for (const int &adjacent : adjacency_list[vertex]) {         if (adjacent != parent and adjacent != deepest_child) {           for (int depth = 1; depth <= depth_array[adjacent].size(); ++depth) {             depth_array[vertex][depth] += depth_array[adjacent][depth - 1];             if (depth_array[vertex][depth] >                     depth_array[vertex][dominant_index[vertex]] or                 (depth_array[vertex][depth] ==                      depth_array[vertex][dominant_index[vertex]] and                  depth < dominant_index[vertex])) {               dominant_index[vertex] = depth;             }           }         }       }     } else {       depth_array[vertex] = {1};       dominant_index[vertex] = 0;     }   }   void optimize_IO() {     ios_base::sync_with_stdio(false);     cin.tie(nullptr);   }   int main() {     optimize_IO();     cin >> n;     for (int i = 1; i <= n - 1; ++i) {       int x, y;       cin >> x >> y;       make_adjacent(x, y);     }     compute_depth_array(ROOT);     for (int vertex = 1; vertex <= n; ++vertex)       cout << dominant_index[vertex] <<    ;     cout <<   n ;   }   