func_code_string: #include <bits/stdc++.h>   using namespace std;   int n, m, q, k, a[110000], cnt, tmp[110000];   int edgenum = 1, vet[610000], val[610000], Next[610000], Head[110000];   double ang[610000];   bool vis[110000];   map<pair<int, int>, int> rnk;   vector<long long> sum[110000];   struct node {     int x, y;     node() {}     node(int _x, int _y) : x(_x), y(_y) {}   } p[110000];   node operator-(const node &a, const node &b) {     return node(a.x - b.x, a.y - b.y);   }   char Getchar() {     static char now[1 << 20], *S, *T;     if (T == S) {       T = (S = now) + fread(now, 1, 1 << 20, stdin);       if (T == S) return EOF;     }     return *S++;   }   int read() {     int x = 0, f = 1;     char ch = Getchar();     while (ch <  0  || ch >  9 ) {       if (ch ==  - ) f = -1;       ch = Getchar();     }     while (ch <=  9  && ch >=  0 ) x = x * 10 + ch -  0 , ch = Getchar();     return x * f;   }   void addedge(int u, int v) {     vet[++edgenum] = v;     Next[edgenum] = Head[u];     Head[u] = edgenum;   }   int dfs(int u) {     vis[u] = true;     int flow = 1, tmp;     for (int e = Head[u]; e; e = Next[e])       if (!vis[vet[e]]) {         tmp = dfs(vet[e]);         val[e] += tmp;         val[e ^ 1] -= tmp;         flow += tmp;       }     return flow;   }   inline bool cmp(int a, int b) { return ang[a] < ang[b]; }   inline long long cross(node x, node y) {     return 1ll * x.x * y.y - 1ll * x.y * y.x;   }   int main() {     n = read();     m = read();     int u, v;     for (int i = 1; i <= m; i++) {       u = read();       v = read();       addedge(u, v);       addedge(v, u);     }     for (int i = 1; i <= n; i++) p[i].x = read(), p[i].y = read();     int rt = 1;     for (int i = 2; i <= n; i++)       if (p[i].x < p[rt].x) rt = i;     dfs(rt);     for (int u = 1; u <= n; u++) {       cnt = 0;       for (int e = Head[u]; e; e = Next[e]) {         tmp[++cnt] = e;         v = vet[e];         ang[e] = atan2(p[v].y - p[u].y, p[v].x - p[u].x);       }       sort(tmp + 1, tmp + cnt + 1, cmp);       sum[u].push_back(0);       for (int i = 1; i <= cnt; i++) {         rnk[pair<int, int>(u, vet[tmp[i]])] = i;         sum[u].push_back(sum[u].back() + val[tmp[i]]);       }     }     q = read();     int l, r;     while (q--) {       k = read();       for (int i = 1; i <= k; i++) a[i] = read();       long long s = 0, ans = k;       for (int i = 2; i < k; i++)         s += cross(p[a[i]] - p[a[1]], p[a[i + 1]] - p[a[1]]);       if (s < 0) reverse(a + 1, a + k + 1);       a[0] = a[k];       a[k + 1] = a[1];       for (int i = 1; i <= k; i++) {         l = rnk[pair<int, int>(a[i], a[i + 1])];         r = rnk[pair<int, int>(a[i], a[i - 1])];         ans += sum[a[i]][r] - sum[a[i]][l - 1];         if (l > r) ans += sum[a[i]][(int)sum[a[i]].size() - 1];       }       printf( %lld n , ans);     }     return 0;   }   