#include #include #include #include #include #include #include #include #include #include #include #include #include #include #include using namespace std; #define rep(i, n) for (int i = 0; i < n; i++) #define rep1(i, n) for (int i = 1; i < n + 1; i++) #define rev(i, n) for (int i = n - 1; i >= 0; i--) #define all(A) A.begin(), A.end() #define itr(A, l, r) A.begin() + l, A.begin() + r #define debug(var) cout << #var << " = " << var << endl; typedef long long ll; template ostream &operator<<(ostream &os, const pair &p) { os << "(" << p.first << "," << p.second << ")"; return os; } template istream &operator>>(istream &is, pair &p) { is >> p.first >> p.second; return is; } template ostream &operator<<(ostream &os, const vector &v) { for (int i = 0; i < (int)v.size(); i++) { os << v[i] << (i + 1 != (int)v.size() ? " " : ""); } return os; } template ostream &operator<<(ostream &os, const vector> &v) { for (int i = 0; i < (int)v.size(); i++) { os << v[i] << endl; } return os; } template ostream &operator<<(ostream &os, const vector>> &v) { int n = v.size(); int m = v[0].size(); int p = v[0][0].size(); rep(k, p) { os << "k = " << k << endl; rep(i, n) { rep(j, m) { os << v[i][j][k]; if (j < m - 1) { os << " "; } else { os << endl; } } } } return os; } template istream &operator>>(istream &is, vector &v) { for (T &in : v) is >> in; return is; } template ostream &operator<<(ostream &os, map &mp) { for (auto &[key, val] : mp) { os << key << ":" << val << " "; } cout << endl; return os; } template ostream &operator<<(ostream &os, set st) { auto itr = st.begin(); for (int i = 0; i < (int)st.size(); i++) { os << *itr << (i + 1 != (int)st.size() ? " " : ""); itr++; } return os; } template ostream &operator<<(ostream &os, multiset st) { auto itr = st.begin(); for (int i = 0; i < (int)st.size(); i++) { os << *itr << (i + 1 != (int)st.size() ? " " : ""); itr++; } return os; } template ostream &operator<<(ostream &os, queue q) { while (q.size()) { os << q.front() << " "; q.pop(); } return os; } template ostream &operator<<(ostream &os, deque q) { while (q.size()) { os << q.front() << " "; q.pop_front(); } return os; } template ostream &operator<<(ostream &os, stack st) { while (st.size()) { os << st.top() << " "; st.pop(); } return os; } template ostream &operator<<(ostream &os, priority_queue pq) { while (pq.size()) { os << pq.top() << " "; pq.pop(); } return os; } template ostream &operator<<(ostream &os, priority_queue, greater> mpq) { while (mpq.size()) { os << mpq.top() << " "; mpq.pop(); } return os; } struct UnionFind{ vector par; vector connect; vector> child; UnionFind(int n){ par.resize(n,-1); connect.resize(n,1e9); connect[0] = 0; child.resize(n); rep(i,n){ child[i].insert(i); } } int root(int x){ if(par[x]<0){ return x; } return par[x] = root(par[x]); } int size(int x){ return -par[root(x)]; } int merge(int x,int y,int turn){ int rx = root(x); int ry = root(y); if(rx==ry){ return rx; } if(rx>ry){ swap(rx,ry); } par[rx] += par[ry]; par[ry] = rx; for(int c:child[ry]){ // debug(c); child[rx].insert(c); connect[c] = turn; } child[ry].clear(); return rx; } }; int main(){ int n,m,q; cin >> n >> m >> q; UnionFind uf(n); vector> vp(m); cin >> vp; set> use; vector> vq(q); cin >> vq; rep(i,q){ use.insert(vq[i]); } // debug(vp); // debug(vq); // debug(use); for(auto [a,b] : vp){ if(use.count({a,b})){ continue; } a--; b--; uf.merge(a,b,1e9); } // debug(uf.connect); reverse(all(vq)); // debug(vq); int cnt = q; for(auto [a,b] : vq){ a--; b--; uf.merge(a,b,cnt); cnt--; } // debug(uf.connect); for(int i=1;i