結果
問題 | No.957 植林 |
ユーザー | noshi91 |
提出日時 | 2019-12-19 22:20:11 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 7,026 bytes |
コンパイル時間 | 1,214 ms |
コンパイル使用メモリ | 113,460 KB |
実行使用メモリ | 19,848 KB |
最終ジャッジ日時 | 2024-07-07 01:54:43 |
合計ジャッジ時間 | 4,770 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge5 |
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テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
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testcase_00 | AC | 1 ms
13,884 KB |
testcase_01 | AC | 2 ms
6,940 KB |
testcase_02 | AC | 1 ms
6,940 KB |
testcase_03 | TLE | - |
testcase_04 | -- | - |
testcase_05 | -- | - |
testcase_06 | -- | - |
testcase_07 | -- | - |
testcase_08 | -- | - |
testcase_09 | -- | - |
testcase_10 | -- | - |
testcase_11 | -- | - |
testcase_12 | -- | - |
testcase_13 | -- | - |
testcase_14 | -- | - |
testcase_15 | -- | - |
testcase_16 | -- | - |
testcase_17 | -- | - |
testcase_18 | -- | - |
testcase_19 | -- | - |
testcase_20 | -- | - |
testcase_21 | -- | - |
testcase_22 | -- | - |
testcase_23 | -- | - |
testcase_24 | -- | - |
testcase_25 | -- | - |
testcase_26 | -- | - |
testcase_27 | -- | - |
testcase_28 | -- | - |
testcase_29 | -- | - |
testcase_30 | -- | - |
testcase_31 | -- | - |
testcase_32 | -- | - |
testcase_33 | -- | - |
testcase_34 | -- | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
testcase_38 | -- | - |
testcase_39 | -- | - |
testcase_40 | -- | - |
testcase_41 | -- | - |
testcase_42 | -- | - |
testcase_43 | -- | - |
testcase_44 | -- | - |
testcase_45 | -- | - |
testcase_46 | -- | - |
testcase_47 | -- | - |
ソースコード
//#define NDEBUG #include <algorithm> #include <cstddef> #include <cstdint> #include <iostream> #include <utility> #include <vector> namespace n91 { using i8 = std::int_fast8_t; using i32 = std::int_fast32_t; using i64 = std::int_fast64_t; using u8 = std::uint_fast8_t; using u32 = std::uint_fast32_t; using u64 = std::uint_fast64_t; using isize = std::ptrdiff_t; using usize = std::size_t; struct rep { struct itr { usize i; constexpr itr(const usize i) noexcept : i(i) {} void operator++() noexcept { ++i; } constexpr usize operator*() const noexcept { return i; } constexpr bool operator!=(const itr x) const noexcept { return i != x.i; } }; const itr f, l; constexpr rep(const usize f, const usize l) noexcept : f(std::min(f, l)), l(l) {} constexpr auto begin() const noexcept { return f; } constexpr auto end() const noexcept { return l; } }; struct revrep { struct itr { usize i; constexpr itr(const usize i) noexcept : i(i) {} void operator++() noexcept { --i; } constexpr usize operator*() const noexcept { return i; } constexpr bool operator!=(const itr x) const noexcept { return i != x.i; } }; const itr f, l; constexpr revrep(const usize f, const usize l) noexcept : f(l - 1), l(std::min(f, l) - 1) {} constexpr auto begin() const noexcept { return f; } constexpr auto end() const noexcept { return l; } }; template <class T> auto md_vec(const usize n, const T &value) { return std::vector<T>(n, value); } template <class... Args> auto md_vec(const usize n, Args... args) { return std::vector<decltype(md_vec(args...))>(n, md_vec(args...)); } template <class T> constexpr T difference(const T &a, const T &b) noexcept { if (a < b) { return b - a; } else { return a - b; } } template <class T> void chmin(T &a, const T &b) noexcept { if (b < a) { a = b; } } template <class T> void chmax(T &a, const T &b) noexcept { if (a < b) { a = b; } } template <class F> class fix_point : private F { public: explicit constexpr fix_point(F &&f) : F(std::forward<F>(f)) {} template <class... Args> constexpr decltype(auto) operator()(Args &&... args) const { return F::operator()(*this, std::forward<Args>(args)...); } }; template <class F> constexpr decltype(auto) make_fix(F &&f) { return fix_point<F>(std::forward<F>(f)); } template <class T> T scan() { T ret; std::cin >> ret; return ret; } } // namespace n91 #ifndef NIMI_GRAPH #define NIMI_GRAPH #include <vector> namespace nimi { struct base_edge { int from; int to; base_edge(int from, int to) : from(from), to(to) {} }; template <class T> struct edge : public base_edge { T val; edge(int from, int to, T v) : base_edge(from, to), val(v) {} }; template <> struct edge<void> : public base_edge { edge(int from, int to) : base_edge(from, to) {} }; template <class C> struct maxflow_edge : public base_edge { C cap; std::size_t rev; maxflow_edge(int from, int to, C cap, std::size_t rev) : base_edge(from, to), cap(cap), rev(rev) {} }; template <class C> struct mcf_edge : public base_edge { C cap; C cost; std::size_t rev; mcf_edge(int from, int to, C cap, C cost, std::size_t rev) : base_edge(from, to), cap(cap), cost(cost), rev(rev) {} }; template <class T> struct directed_graph : public std::vector<std::vector<edge<T>>> { directed_graph(std::size_t n) : std::vector<std::vector<edge<T>>>(n) {} void add_edge(const edge<T> &e) { this->at(e.from).push_back(e); } }; template <class T> struct undirected_graph : public std::vector<std::vector<edge<T>>> { undirected_graph(std::size_t n) : std::vector<std::vector<edge<T>>>(n) {} void add_edge(const edge<T> &e) { this->at(e.from).push_back(e); edge<T> re = e; std::swap(re.from, re.to); this->at(e.to).push_back(re); } }; template <class C> struct maxflow_graph : public std::vector<std::vector<maxflow_edge<C>>> { maxflow_graph(std::size_t n) : std::vector<std::vector<maxflow_edge<C>>>(n) {} void add_edge(int from, int to, C cap, std::size_t rev_cap = 0) { this->at(from).push_back( maxflow_edge<C>(from, to, cap, this->at(to).size())); this->at(to).push_back( maxflow_edge<C>(to, from, rev_cap, this->at(from).size() - 1)); } }; template <class C> struct mcf_graph : public std::vector<std::vector<mcf_edge<C>>> { mcf_graph(std::size_t n) : std::vector<std::vector<mcf_edge<C>>>(n) {} void add_edge(int from, int to, C cap, C cost, std::size_t rev_cap = 0) { this->at(from).push_back( mcf_edge<C>(from, to, cap, cost, this->at(to).size())); this->at(to).push_back( mcf_edge<C>(to, from, rev_cap, -cost, this->at(from).size() - 1)); } }; } // namespace nimi #endif #ifndef NIMI_GRAPH_MAXFLOW_DINIC #define NIMI_GRAPH_MAXFLOW_DINIC #include <functional> #include <limits> #include <queue> #include <vector> namespace nimi { template <class C> C dinic(nimi::maxflow_graph<C> &g, std::size_t s, std::size_t t) { C inf = std::numeric_limits<C>::max(); C ans = 0; std::size_t n = g.size(); std::vector<int> level(n); std::vector<std::size_t> iter(n); std::function<void(void)> g_level = [&]() { level.assign(n, -1); std::queue<int> que; que.push(s); level[s] = 0; while (!que.empty()) { int v = que.front(); que.pop(); for (const auto &e : g[v]) { if (e.cap > 0 && level[e.to] == -1) { level[e.to] = level[e.from] + 1; que.push(e.to); } } } }; std::function<C(int, C)> dinic_dfs = [&](int v, C f) { if (v == t) return f; C now = f; for (std::size_t &i = iter[v]; i < g[v].size(); i++) { auto &e = g[v][i]; if (e.cap > 0 && level[e.to] > level[e.from]) { C ff = dinic_dfs(e.to, std::min(now, e.cap)); e.cap -= ff; g[e.to][e.rev].cap += ff; now -= ff; } } return f - now; }; while (1) { g_level(); if (level[t] < 0) break; C f; iter.assign(n, 0); while ((f = dinic_dfs(s, inf)) > 0) { ans += f; } } return ans; } } // namespace nimi #endif #include <algorithm> #include <iostream> #include <utility> #include <vector> namespace n91 { void main_() { /* std::ios::sync_with_stdio(false); std::cin.tie(nullptr); //*/ const usize h = scan<usize>(); const usize w = scan<usize>(); nimi::maxflow_graph<u64> g(h + w + 2); const usize s = h + w; const usize t = h + w + 1; for (const usize i : rep(0, h)) { for (const usize j : rep(0, w)) { const u64 c = scan<u64>(); g.add_edge(i, h + j, c); g.add_edge(s, i, c); } } u64 ans = 0; for (const usize i : rep(0, h)) { const u64 c = scan<u64>(); ans += c; g.add_edge(i, t, c); } for (const usize i : rep(0, w)) { const u64 c = scan<u64>(); ans += c; g.add_edge(h + i, t, c); } std::cout << ans - nimi::dinic(g, s, t) << std::endl; } } // namespace n91 int main() { n91::main_(); return 0; }