結果
問題 | No.899 γatheree |
ユーザー |
![]() |
提出日時 | 2019-10-04 22:18:53 |
言語 | C++17 (gcc 13.3.0 + boost 1.87.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 3,491 bytes |
コンパイル時間 | 2,354 ms |
コンパイル使用メモリ | 202,444 KB |
最終ジャッジ日時 | 2025-01-07 20:37:36 |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 1 |
other | AC * 20 TLE * 3 |
ソースコード
#include <bits/stdc++.h> #define loop(n) for (int ngtkana_is_genius = 0; ngtkana_is_genius < int(n); ngtkana_is_genius++) #define rep(i, begin, end) for(int i = int(begin); i < int(end); i++) #define all(v) v.begin(), v.end() #define rand(l, r) std::uniform_int_distribution<>(l, r)(mt) using lint = long long; auto cmn = [](auto& a, auto b){if (a > b) {a = b; return true;} return false;}; auto cmx = [](auto& a, auto b){if (a < b) {a = b; return true;} return false;}; void debug_impl() { std::cerr << std::endl; } template <typename Head, typename... Tail> void debug_impl(Head head, Tail... tail){ std::cerr << " " << head; debug_impl(tail...); } #ifndef STOPIT #define debug(...)\ std::cerr << std::boolalpha << "[" << #__VA_ARGS__ << "]:";\ debug_impl(__VA_ARGS__);\ std::cerr << std::noboolalpha; #else #define debug 0; #endif template <typename T> auto make_vector_impl(size_t sz, T t) {return std::vector<T>(sz, t);} template <size_t N, typename T, typename U, std::enable_if_t<N == 1, std::nullptr_t> = nullptr> auto make_vector(size_t sz, U u) {return make_vector_impl(sz, T(u));} template <size_t N, typename T, std::enable_if_t<N == 1, std::nullptr_t> = nullptr> auto make_vector(size_t sz) {return std::vector<T>(sz);} template <size_t N, typename T, typename... Args, std::enable_if_t<N != 1, std::nullptr_t> = nullptr> auto make_vector(size_t a, Args... args) {return make_vector_impl(a, make_vector<N - 1, T>(args...));} template <typename T, typename Size_t> auto& at(T& t, Size_t i) {return t.at(i);} template <typename T, typename Size_t, typename... Args> auto& at(T& t, Size_t i, Args... args) {return at(t.at(i), args...);} template < typename Container, typename Value = typename Container::value_type, std::enable_if_t<!std::is_same< Container, std::string >::value, std::nullptr_t> = nullptr> std::istream& operator>> (std::istream& is, Container& v) { for (auto & x : v) { is >> x; } return is; } template < typename Container, typename Value = typename Container::value_type, std::enable_if_t<!std::is_same< Container, std::string >::value, std::nullptr_t> = nullptr > std::ostream& operator<< (std::ostream& os, Container const& v) { os << "{"; for (auto it = v.begin(); it != v.end(); it++) {os << (it != v.begin() ? "," : "") << *it;} return os << "}"; } template< typename F > class fixed_point : F { public: explicit constexpr fixed_point (F&& f) noexcept : F(std::forward< F >(f)) {} template< typename ... Args > constexpr decltype(auto) operator()(Args&& ... args) const { return F::operator()(*this, std::forward< Args >(args)...); } }; template< typename F > static inline constexpr decltype(auto) fix (F&& f) noexcept { return fixed_point< F >{std::forward< F >(f)}; } int main() { std::cin.tie(0); std::cin.sync_with_stdio(false); int n; std::cin >> n; auto graph = make_vector< 2, int >(n, 0); loop(n - 1) { int u, v; std::cin >> u >> v; graph.at(u).emplace_back(v); graph.at(v).emplace_back(u); } std::vector< lint > a(n); std::cin >> a; std::vector< int > ref(n, -1); int q; std::cin >> q; loop(q) { int x; std::cin >> x; fix([&](auto dfs, int crr, int prv, int d) -> void { a.at(x) += std::exchange(a.at(crr), 0); if (d <= 1) { for (auto const& nxt : graph.at(crr)) { if (nxt == prv) continue; dfs(nxt, crr, d + 1); } } })(x, x, 0); std::cout << a.at(x) << std::endl; } return 0; }