func_code_string: #include <bits/stdc++.h>   using namespace std;   vector<long long> adj[100007][2];   long long ecnt[100007][2] = {0};   long long ss[100007] = {0};   long long sum = 0;   long long n, m, q;   int main() {     cin >> n >> m;     for (long long i = 0; i < m; i++) {       long long a, b;       cin >> a >> b;       --a;       --b;       if (a > b) swap(a, b);       adj[a][0].push_back(b);       adj[b][1].push_back(a);       ecnt[a][0]++;       ecnt[b][1]++;     }     for (long long i = 0; i < n; i++) {       ss[i] = ecnt[i][0] * ecnt[i][1];       sum += ss[i];     }     cin >> q;     cout << sum << endl;     while (q--) {       long long v;       cin >> v;       --v;       sum -= ss[v];       ss[v] = 0;       ecnt[v][1] += ecnt[v][0];       ecnt[v][0] = 0;       for (auto i : adj[v][0]) {         sum -= ecnt[i][0] * ecnt[i][1];         ecnt[i][1]--;         ecnt[i][0]++;         sum += ecnt[i][0] * ecnt[i][1];         ss[i] = ecnt[i][0] * ecnt[i][1];         adj[i][0].push_back(v);       }       adj[v][0].clear();       cout << sum << endl;     }   }   