func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 5e5 + 7;   vector<int> g[N];   int used[N];   int pos[N];   vector<vector<int>> cycles;   vector<int> st;   void dfs(int u, int p = -1) {     st.push_back(u);     pos[st.back()] = (int)st.size() - 1;     used[u] = 1;     for (auto v : g[u]) {       if (!used[v]) {         dfs(v, u);       } else if (v != p && used[v] == 1) {         int x = pos[v];         cycles.push_back({});         for (int i = x; i < (int)st.size(); ++i) {           cycles.back().push_back(st[i]);         }       }     }     st.pop_back();     used[u] = 2;   }   int main() {     ios_base::sync_with_stdio(false);     cin.tie(0);     int n, m;     cin >> n >> m;     vector<pair<int, int>> edges;     map<pair<int, int>, int> id;     for (int i = 0; i < m; ++i) {       int u, v;       cin >> u >> v;       --u, --v;       g[u].push_back(v);       g[v].push_back(u);       edges.push_back({u, v});       id[{u, v}] = id[{v, u}] = i;     }     dfs(0);     vector<int> res(m);     vector<int> who(m, -1);     vector<int> cmp(n, -1);     for (int i = 0; i < (int)cycles.size(); ++i) {       vector<int> ce;       for (int j = 0; j < (int)cycles[i].size(); ++j) {         cmp[cycles[i][j]] = i;         ce.push_back(             id[{cycles[i][j], cycles[i][(j + 1) % (int)cycles[i].size()]}]);       }       rotate(ce.begin(), min_element(ce.begin(), ce.end()), ce.end());       int mx = max_element(ce.begin(), ce.end()) - ce.begin();       bool ok = true;       for (int i = 1; i <= mx; ++i) ok &= ce[i] > ce[i - 1];       for (int i = mx + 1; i < ce.size(); ++i) ok &= ce[i] < ce[i - 1];       if (ok) who[ce[0]] = ce[mx];     }     vector<int> ans(n, 1);     for (int i = m - 1; i >= 0; --i) {       int a = edges[i].first;       int b = edges[i].second;       int sum = ans[a] + ans[b];       if (who[i] != -1) sum -= res[who[i]];       res[i] = sum;       ans[a] = ans[b] = sum;     }     for (int i = 0; i < n; ++i) cout << ans[i] - 1 <<    ;   }   