func_code_string: #include <bits/stdc++.h>   using namespace std;   vector<int> g[100005];   bool vis[100005];   long long min_val;   void dfs(int v, long long* arr) {     min_val = min(arr[v], min_val);     vis[v] = true;     for (int i = 0; i < g[v].size(); i++) {       int neig = g[v][i];       if (!vis[neig]) {         dfs(neig, arr);       }     }   }   int main() {     std::ios::sync_with_stdio(0);     cin.tie(NULL);     cout.tie(NULL);     int n, m, x, y;     cin >> n >> m;     long long* v = new long long[n + 1]();     for (int i = 1; i <= n; i++) {       cin >> v[i];     }     for (int i = 0; i < m; i++) {       cin >> x >> y;       g[x].push_back(y);       g[y].push_back(x);     }     long long ans = 0;     memset(vis, false, sizeof(vis));     for (int i = 1; i <= n; i++) {       if (!vis[i]) {         min_val = LONG_MAX;         dfs(i, v);         ans += min_val;       }     }     cout << ans;     return 0;   }   