func_code_string: #include <bits/stdc++.h>   using namespace std;   const bool print = false;   const int N = 5e5 + 7;   int n, m;   vector<int> gr[N];   int cyk[N], odl[N], par[N];   vector<int> mycyk[N];   bool odw[N];   int ans[N];   vector<int> child[N];   int dpd[N], dpu[N];   void dfs1(int v) {     odw[v] = 1;     for (int i : gr[v]) {       if (i == par[v]) continue;       if (odw[i]) {         if (odl[i] < odl[v]) {           int w = v;           while (w != i) {             cyk[w] = i;             mycyk[i].push_back(w);             w = par[w];           }           cyk[i] = i;           mycyk[i].push_back(i);           reverse((mycyk[i]).begin(), (mycyk[i]).end());         }         continue;       }       odl[i] = odl[v] + 1;       par[i] = v;       dfs1(i);       if (cyk[i] != cyk[v] || !cyk[v]) child[v].push_back(i);     }   }   void dfs2(int v) {     for (int i = (1); i <= ((int)mycyk[v].size() - 1); i++) {       dfs2(mycyk[v][i]);       dpd[v] = max(dpd[v], dpd[mycyk[v][i]] + min(i, (int)mycyk[v].size() - i));     }     for (int i : child[v]) {       dfs2(i);       dpd[v] = max(dpd[v], dpd[i] + 1);     }   }   deque<int> kol;   void clearit() { kol.clear(); }   void add(int v) {     while (!kol.empty() && kol.back() < v) kol.pop_back();     kol.push_back(v);   }   void remove(int v) {     if (kol.front() == v) kol.pop_front();   }   int war[N];   void solve(int v) {     int k = mycyk[v].size();     clearit();     for (int i = (0); i <= (k - 1); i++) {       war[i] = max(dpd[mycyk[v][i]], dpu[mycyk[v][i]]);       if (!i) {         war[0] = dpu[mycyk[v][i]];         for (int j : child[v]) war[0] = max(war[0], dpd[j] + 1);       }     }     for (int i = (k / 2); i >= (1); i--) add(war[k - i] + i);     for (int i = (0); i <= (k - 1); i++) {       int x = mycyk[v][i];       if (i) dpu[x] = max(dpu[x], kol.front() + i);       remove(war[(i - k / 2 + k) % k] - (i - k / 2));       add(war[i] - i);     }     clearit();     for (int i = (k / 2 - 1); i >= (0); i--) add(war[i] + k + i);     for (int i = (k - 1); i >= (1); i--) {       int x = mycyk[v][i];       dpu[x] = max(dpu[x], kol.front() - i);       remove(war[(i + k / 2) % k] + (i + k / 2));       add(war[i] + i);     }   }   void dfs3(int v) {     priority_queue<int> pri;     pri.push(dpu[v]);     if (cyk[v] == v) {       solve(v);       int j = 0;       for (int i : mycyk[v])         if (i != v) {           dfs3(i);           j++;           pri.push(dpd[i] + min(j, (int)mycyk[v].size() - j));         }     }     for (int i : child[v]) pri.push(dpd[i] + 1);     int x = pri.top();     pri.pop();     int y = -1;     if (!pri.empty()) y = pri.top();     for (int i : child[v]) {       if (dpd[i] + 1 != x)         dpu[i] = x + 1;       else         dpu[i] = y + 1;       dfs3(i);     }   }   int main() {     scanf( %d%d , &n, &m);     for (int i = (1); i <= (m); i++) {       int a, b;       scanf( %d%d , &a, &b);       gr[a].push_back(b);       gr[b].push_back(a);     }     odl[1] = 1;     dfs1(1);     dfs2(1);     dfs3(1);     for (int i = (1); i <= (n); i++) ans[i] = max(dpd[i], dpu[i]);     for (int i = (1); i <= (n); i++) printf( %d  , ans[i]);     printf(  n );     return 0;   }   