結果
問題 | No.416 旅行会社 |
ユーザー |
|
提出日時 | 2025-02-23 14:30:15 |
言語 | C++23 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 322 ms / 4,000 ms |
コード長 | 5,735 bytes |
コンパイル時間 | 4,522 ms |
コンパイル使用メモリ | 293,436 KB |
実行使用メモリ | 18,900 KB |
最終ジャッジ日時 | 2025-02-23 14:30:26 |
合計ジャッジ時間 | 8,953 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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ファイルパターン | 結果 |
---|---|
other | AC * 21 |
ソースコード
#line 2 "template.hpp" // #pragma GCC target("avx2") // #pragma GCC optimize("O3") // #pragma GCC optimize("unroll-loops") #include <bits/stdc++.h> using namespace std; // https://xn--kst.jp/blog/2019/08/29/cpp-comp/ // debug methods // usage: debug(x,y); // vector 出力できるように修正 template <typename T> ostream& debug_print(ostream& os, const vector<T>& v) { os << "["; for (size_t i = 0; i < v.size(); ++i) { os << v[i]; if (i < v.size() - 1) os << ", "; } os << "]"; return os; } template <typename T> ostream& debug_print(ostream& os, const T& var) { os << var; return os; } #define CHOOSE(a) CHOOSE2 a #define CHOOSE2(a0, a1, a2, a3, a4, x, ...) x #define debug_1(x1) { cout << #x1 << ": "; debug_print(cout, x1) << endl; } #define debug_2(x1, x2) { cout << #x1 << ": "; debug_print(cout, x1) << ", " << #x2 << ": "; debug_print(cout, x2) << endl; } #define debug_3(x1, x2, x3) { cout << #x1 << ": "; debug_print(cout, x1) << ", " << #x2 << ": "; debug_print(cout, x2) << ", " << #x3 << ": "; debug_print(cout, x3) << endl; } #define debug_4(x1, x2, x3, x4) { cout << #x1 << ": "; debug_print(cout, x1) << ", " << #x2 << ": "; debug_print(cout, x2) << ", " << #x3 << ": "; debug_print(cout, x3) << ", " << #x4 << ": "; debug_print(cout, x4) << endl; } #define debug_5(x1, x2, x3, x4, x5) { cout << #x1 << ": "; debug_print(cout, x1) << ", " << #x2 << ": "; debug_print(cout, x2) << ", " << #x3 << ": "; debug_print(cout, x3) << ", " << #x4 << ": "; debug_print(cout, x4) << ", " << #x5 << ": "; debug_print(cout, x5) << endl; } #ifdef LOCAL #define debug(...) CHOOSE((__VA_ARGS__, debug_5, debug_4, debug_3, debug_2, debug_1, ~))(__VA_ARGS__) #else #define debug(...) #endif using ll = long long; using vl = vector<ll>; using Graph = vector<vector<ll>>; using P = pair<ll, ll>; #define all(v) v.begin(), v.end() template <typename T> inline bool chmax(T &a, T b) { return ((a < b) ? (a = b, true) : (false)); } template <typename T> inline bool chmin(T &a, T b) { return ((a > b) ? (a = b, true) : (false)); } #define rep1(i, n) for(ll i = 1; i <= ((ll)n); ++i) // https://trap.jp/post/1224/ template <class... T> constexpr auto min(T... a) { return min(initializer_list<common_type_t<T...>>{a...}); } template <class... T> constexpr auto max(T... a) { return max(initializer_list<common_type_t<T...>>{a...}); } template <class... T> void input(T &...a) { (cin >> ... >> a); } template <class T> void input(vector<T> &a) { for(T &x : a) cin >> x; } void print() { cout << '\n'; } template <class T, class... Ts> void print(const T &a, const Ts &...b) { cout << a; (cout << ... << (cout << ' ', b)); cout << '\n'; } void print(const string &s) { cout << s << '\n'; } template <class Container, typename = void> struct is_container : std::false_type {}; template <class Container> struct is_container<Container, std::void_t<decltype(std::declval<Container>().begin()), decltype(std::declval<Container>().end())>> : std::true_type {}; template <class Container> typename enable_if<is_container<Container>::value>::type print(const Container& x) { if (!x.empty()) { auto it = x.begin(); for (; it != prev(x.end()); ++it) { cout << *it << " "; } cout << *it << "\n"; // 最後の要素を出力して改行 } } #define INT(...) \ int __VA_ARGS__; \ input(__VA_ARGS__) #define LL(...) \ long long __VA_ARGS__; \ input(__VA_ARGS__) #define STR(...) \ string __VA_ARGS__; \ input(__VA_ARGS__) #define REP1(a) for(ll i = 0; i < a; i++) #define REP2(i, a) for(ll i = 0; i < a; i++) #define REP3(i, a, b) for(ll i = a; i < b; i++) #define REP4(i, a, b, c) for(ll i = a; i < b; i += c) #define overload4(a, b, c, d, e, ...) e #define rep(...) overload4(__VA_ARGS__, REP4, REP3, REP2, REP1)(__VA_ARGS__) ll inf = 3e18; vl dx = {1, -1, 0, 0}; vl dy = {0, 0, 1, -1}; #line 2 "/home/y_midori/cp/test.cpp" #include <atcoder/dsu> struct dsu_list { int n; vector<int> nex; dsu_list(int n) : n(n), nex(n) { iota(all(nex), 0); }; void merge(int i, int j) { swap(nex[i], nex[j]); } vector<int> list(int i) { vector<int> res{i}; while(nex[i] != res.front()) { i = nex[i]; res.emplace_back(i); } return res; } }; void solve() { LL(n, m, q); set<P> s; rep(i, m) { LL(a, b); s.insert(P(--a, --b)); } vector<P> qs(q); rep(i, q) { LL(a, b); qs[i] = P(--a, --b); s.erase(P(a, b)); } atcoder::dsu dsu(n); dsu_list d(n); for(auto [i, j] : s) { if(!dsu.same(i, j)) { dsu.merge(i, j); d.merge(i, j); } } vl ans(n, 0); for(auto i : d.list(0)) ans[i] = -1; for(int i = q - 1; i >= 0; i--) { auto [x, y] = qs[i]; if(!dsu.same(x, y)) { if(dsu.same(y, 0)) swap(x, y); if(dsu.same(x, 0)) { for(auto j : d.list(y)) { ans[j] = i + 1; } } dsu.merge(x, y); d.merge(x, y); } } rep(i, 1, n) print(ans[i]); } int main() { ios::sync_with_stdio(false); std::cin.tie(nullptr); cout << std::setprecision(16); solve(); }