func_code_string: #include <bits/stdc++.h>   using namespace std;   long long n, cv;   long long level[3501];   long long vis[3501] = {};   vector<long long> graph[3501];   vector<long long> cycles[3501];   vector<long long> z;   void dfs_cycle(long long u, long long p, long long color[], long long mark[],                  long long par[], long long& cyclenumber) {     if (color[u] == 2) {       return;     }     if (color[u] == 1) {       cyclenumber++;       long long cur = p;       mark[cur] = cyclenumber;       while (cur != u) {         cur = par[cur];         mark[cur] = cyclenumber;       }       return;     }     par[u] = p;     color[u] = 1;     for (long long v : graph[u]) {       if (v == par[u]) {         continue;       }       dfs_cycle(v, u, color, mark, par, cyclenumber);     }     color[u] = 2;   }   void printCycles(long long edges, long long mark[], long long& cyclenumber) {     for (long long i = 1; i <= edges; i++) {       if (mark[i] != 0) cycles[mark[i]].push_back(i);     }     for (long long i = 1; i <= cyclenumber; i++) {       for (long long x : cycles[i]) z.push_back(x);     }   }   void bfs(long long s) {     queue<long long> q;     q.push(s);     level[s] = 0;     vis[s] = 1;     while (!q.empty()) {       long long p = q.front();       q.pop();       for (long long i = 0; i < graph[p].size(); i++) {         if (vis[graph[p][i]] == 0) {           level[graph[p][i]] = min(level[graph[p][i]], level[p] + 1);           q.push(graph[p][i]);           vis[graph[p][i]] = 1;         }       }     }   }   void quickly_quickly_kro() {     cin >> n;     for (long long i = 1; i < n + 1; i++) {       long long a, b;       cin >> a >> b;       graph[a].push_back(b);       graph[b].push_back(a);     }     long long color[3501];     long long par[3501];     long long mark[3501];     long long cyclenumber = 0;     long long edges = n;     dfs_cycle(1, 0, color, mark, par, cyclenumber);     printCycles(edges, mark, cyclenumber);     for (long long i = 1; i < n + 1; i++) level[i] = (long long)2e18;     for (auto k : z) {       for (long long i = 1; i < n + 1; i++) {         vis[i] = 0;       }       bfs(k);     }     for (long long i = 1; i < n + 1; i++) {       cout << level[i] <<    ;     }   }   signed main() {     std::ios_base::sync_with_stdio(false);     cin.tie(0);     cout.tie(0);     long long t;     t = 1;     while (t--) {       quickly_quickly_kro();       cout <<   n ;     }     return 0;   }   