#line 1 "a.cpp" #define PROBLEM "" #line 2 "/home/kuhaku/home/github/algo/lib/template/template.hpp" #pragma GCC target("sse4.2,avx2,bmi2") #pragma GCC optimize("O3") #pragma GCC optimize("unroll-loops") #include template bool chmax(T &a, const U &b) { return a < (T)b ? a = (T)b, true : false; } template bool chmin(T &a, const U &b) { return (T)b < a ? a = (T)b, true : false; } constexpr std::int64_t INF = 1000000000000000003; constexpr int Inf = 1000000003; constexpr double EPS = 1e-7; constexpr double PI = M_PI; #line 3 "/home/kuhaku/home/github/algo/lib/template/macro.hpp" #define FOR(i, m, n) for (int i = (m); i < int(n); ++i) #define FORR(i, m, n) for (int i = (m)-1; i >= int(n); --i) #define FORL(i, m, n) for (int64_t i = (m); i < int64_t(n); ++i) #define rep(i, n) FOR (i, 0, n) #define repn(i, n) FOR (i, 1, n + 1) #define repr(i, n) FORR (i, n, 0) #define repnr(i, n) FORR (i, n + 1, 1) #define all(s) (s).begin(), (s).end() #line 3 "/home/kuhaku/home/github/algo/lib/template/sonic.hpp" struct Sonic { Sonic() { std::ios::sync_with_stdio(false); std::cin.tie(nullptr); std::cout << std::fixed << std::setprecision(20); } constexpr void operator()() const {} } sonic; #line 5 "/home/kuhaku/home/github/algo/lib/template/atcoder.hpp" using namespace std; using ll = std::int64_t; using ld = long double; template std::istream &operator>>(std::istream &is, std::pair &p) { return is >> p.first >> p.second; } template std::istream &operator>>(std::istream &is, std::vector &v) { for (T &i : v) is >> i; return is; } template std::ostream &operator<<(std::ostream &os, const std::pair &p) { return os << '(' << p.first << ',' << p.second << ')'; } template std::ostream &operator<<(std::ostream &os, const std::vector &v) { for (auto it = v.begin(); it != v.end(); ++it) { os << (it == v.begin() ? "" : " ") << *it; } return os; } template void co(Head &&head, Tail &&...tail) { if constexpr (sizeof...(tail) == 0) std::cout << head << '\n'; else std::cout << head << ' ', co(std::forward(tail)...); } template void ce(Head &&head, Tail &&...tail) { if constexpr (sizeof...(tail) == 0) std::cerr << head << '\n'; else std::cerr << head << ' ', ce(std::forward(tail)...); } template auto make_vector(T x, int arg, Args... args) { if constexpr (sizeof...(args) == 0) return std::vector(arg, x); else return std::vector(arg, make_vector(x, args...)); } void Yes(bool is_correct = true) { std::cout << (is_correct ? "Yes" : "No") << '\n'; } void No(bool is_not_correct = true) { Yes(!is_not_correct); } void YES(bool is_correct = true) { std::cout << (is_correct ? "YES" : "NO") << '\n'; } void NO(bool is_not_correct = true) { YES(!is_not_correct); } void Takahashi(bool is_correct = true) { std::cout << (is_correct ? "Takahashi" : "Aoki") << '\n'; } void Aoki(bool is_not_correct = true) { Takahashi(!is_not_correct); } #line 2 "/home/kuhaku/home/github/algo/lib/tree/partially_persistent_union_find.hpp" /** * @brief 部分永続Union-Find * */ struct partially_persistent_union_find { partially_persistent_union_find(int _n) : _now(0), _data(_n, std::vector>(1, {0, -1})) {} int root(int x) const { return root(x, _now); } int root(int x, int t) const { auto p = _data[x].back(); if (p.first > t || p.second < 0) return x; return root(p.second, t); } int get_root(int x, int t) const { return root(x, t); } bool is_root(int x, int t) const { return _data[x].back().first > t || _data[x].back().second < 0; } bool same(int x, int y) const { return same(x, y, _now); } bool same(int x, int y, int t) const { return root(x, t) == root(y, t); } bool is_same(int x, int y, int t) const { return same(x, y, t); } int size(int x) const { return size(x, _now); } int size(int x, int t) const { x = root(x, t); return -std::prev(std::upper_bound(_data[x].begin(), _data[x].end(), std::pair{t, _data.size()})) ->second; } int get_size(int x, int t) const { return size(x, t); } int unite(int x, int y) { ++_now; x = root(x, _now), y = root(y, _now); if (x == y) return false; auto p = _data[x].back(), q = _data[y].back(); if (p.second > q.second) std::swap(x, y), std::swap(p, q); _data[x].emplace_back(_now, p.second + q.second); _data[y].emplace_back(_now, x); return true; } private: int _now; std::vector>> _data; }; #line 4 "a.cpp" int main(void) { int n, m, q; cin >> n >> m >> q; vector> es(m); cin >> es; vector> queries(q); cin >> queries; reverse(all(queries)); set> st(all(queries)); partially_persistent_union_find uf(n); for (auto [a, b] : es) { if (!st.count({a, b})) uf.unite(a - 1, b - 1); } for (auto [a, b] : queries) uf.unite(a - 1, b - 1); rep (i, n) { if (!i) continue; if (!uf.same(0, i)) { co(0); continue; } if (uf.same(0, i, m - q)) { co(-1); continue; } auto check = [&](int mid) { return !uf.same(0, i, m - mid); }; int l = q, r = -1; while (abs(l - r) > 1) { int mid = (l + r) / 2; (check(mid) ? l : r) = mid; } co(l); } return 0; }