func_code_string: #include <bits/stdc++.h>   using namespace std;   const int N = 5e5 + 10;   int gi() {     int x = 0, o = 1;     char ch = getchar();     while (!isdigit(ch) && ch !=  - ) ch = getchar();     if (ch ==  - ) o = -1, ch = getchar();     while (isdigit(ch)) x = x * 10 + ch -  0 , ch = getchar();     return x * o;   }   int n, m, f[N], id[N], dfn[N], tim, fa[N], fe[N], u[N], v[N], w[N];   bool in[N];   vector<pair<int, int> > E[N];   void dfs(int u) {     dfn[u] = ++tim;     for (auto e : E[u]) {       int v = e.first;       if (v != fa[u]) {         if (!dfn[v])           fa[v] = u, fe[v] = e.second, dfs(v);         else if (dfn[v] > dfn[u]) {           int x = v;           vector<int> vec = {e.second};           do vec.push_back(fe[x]), x = fa[x];           while (x != u);           rotate(vec.begin(), min_element(vec.begin(), vec.end()), vec.end());           int p = max_element(vec.begin(), vec.end()) - vec.begin();           bool fl = 1;           for (int i = 0; i < p && fl; i++)             if (vec[i] > vec[i + 1]) fl = 0;           for (int i = p; i < int(vec.size()) - 1 && fl; i++)             if (vec[i] < vec[i + 1]) fl = 0;           if (fl) id[vec[0]] = vec[p];         }       }     }   }   int main() {     cin >> n >> m;     for (int i = 1; i <= m; i++)       u[i] = gi(), v[i] = gi(), E[u[i]].push_back(make_pair(v[i], i)),       E[v[i]].push_back(make_pair(u[i], i));     dfs(1);     for (int i = 1; i <= n; i++) f[i] = 1;     for (int i = m; i; i--) {       w[i] = f[u[i]] + f[v[i]];       f[u[i]] = f[v[i]] = w[i] - w[id[i]];     }     for (int i = 1; i <= n; i++) cout << f[i] - 1 <<    ;     return 0;   }   