結果
問題 | No.957 植林 |
ユーザー | noshi91 |
提出日時 | 2019-12-19 23:13:36 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 251 ms / 2,000 ms |
コード長 | 5,085 bytes |
コンパイル時間 | 890 ms |
コンパイル使用メモリ | 86,888 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-07-07 02:04:44 |
合計ジャッジ時間 | 7,753 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 |
---|---|---|
testcase_00 | AC | 4 ms
6,816 KB |
testcase_01 | AC | 3 ms
6,940 KB |
testcase_02 | AC | 3 ms
6,944 KB |
testcase_03 | AC | 21 ms
6,940 KB |
testcase_04 | AC | 20 ms
6,940 KB |
testcase_05 | AC | 19 ms
6,944 KB |
testcase_06 | AC | 24 ms
6,940 KB |
testcase_07 | AC | 19 ms
6,940 KB |
testcase_08 | AC | 13 ms
6,944 KB |
testcase_09 | AC | 12 ms
6,940 KB |
testcase_10 | AC | 13 ms
6,944 KB |
testcase_11 | AC | 14 ms
6,944 KB |
testcase_12 | AC | 13 ms
6,944 KB |
testcase_13 | AC | 12 ms
6,940 KB |
testcase_14 | AC | 14 ms
6,940 KB |
testcase_15 | AC | 11 ms
6,944 KB |
testcase_16 | AC | 10 ms
6,940 KB |
testcase_17 | AC | 11 ms
6,940 KB |
testcase_18 | AC | 186 ms
6,940 KB |
testcase_19 | AC | 185 ms
6,940 KB |
testcase_20 | AC | 192 ms
6,944 KB |
testcase_21 | AC | 202 ms
6,940 KB |
testcase_22 | AC | 214 ms
6,944 KB |
testcase_23 | AC | 229 ms
6,944 KB |
testcase_24 | AC | 236 ms
6,944 KB |
testcase_25 | AC | 251 ms
6,940 KB |
testcase_26 | AC | 242 ms
6,940 KB |
testcase_27 | AC | 246 ms
6,944 KB |
testcase_28 | AC | 239 ms
6,940 KB |
testcase_29 | AC | 236 ms
6,940 KB |
testcase_30 | AC | 231 ms
6,944 KB |
testcase_31 | AC | 195 ms
6,940 KB |
testcase_32 | AC | 202 ms
6,940 KB |
testcase_33 | AC | 202 ms
6,940 KB |
testcase_34 | AC | 204 ms
6,944 KB |
testcase_35 | AC | 215 ms
6,944 KB |
testcase_36 | AC | 213 ms
6,944 KB |
testcase_37 | AC | 226 ms
6,940 KB |
testcase_38 | AC | 250 ms
6,940 KB |
testcase_39 | AC | 235 ms
6,940 KB |
testcase_40 | AC | 241 ms
6,944 KB |
testcase_41 | AC | 9 ms
6,940 KB |
testcase_42 | AC | 9 ms
6,944 KB |
testcase_43 | AC | 15 ms
6,944 KB |
testcase_44 | AC | 17 ms
6,940 KB |
testcase_45 | AC | 3 ms
6,940 KB |
testcase_46 | AC | 4 ms
6,940 KB |
testcase_47 | AC | 3 ms
6,944 KB |
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 #include <cstdlib> #ifndef NIMI_GRAPH_MAXFLOW_DINIC #define NIMI_GRAPH_MAXFLOW_DINIC #include <algorithm> #include <array> #include <limits> #include <queue> namespace nimi { template <class C, std::size_t N> using maxflow_array_matrix = std::array<std::array<C, N>, N>; template <class C, std::size_t N> C dinic(maxflow_array_matrix<C, N> &g, std::size_t s, std::size_t t) { using size_t = std::size_t; constexpr C Inf = std::numeric_limits<C>::max(); C ans = 0; std::array<size_t, N> level; std::array<size_t, N> iter; const auto g_level = [&]() { std::fill(level.begin(), level.end(), N); std::queue<size_t> que; que.push(s); level[s] = 0; while (!que.empty()) { const size_t v = que.front(); que.pop(); for (size_t i = 0; i != N; i += 1) { if (g[v][i] != 0 && level[i] == N) { level[i] = level[v] + 1; que.push(i); } } } }; const auto dinic_dfs = [&](const auto &dinic_dfs, const size_t v, const C f) -> C { if (v == t) return f; C now = f; for (size_t &i = iter[v]; i != N; i += 1) { if (g[v][i] != 0 && level[i] > level[v]) { const C ff = dinic_dfs(dinic_dfs, i, std::min(now, g[v][i])); g[v][i] -= ff; g[i][v] += ff; now -= ff; if (now == 0) return f; } } return f - now; }; while (true) { g_level(); if (level[t] == N) break; std::fill(iter.begin(), iter.end(), 0); int cnt = 0; while (true) { cnt += 1; const C f = dinic_dfs(dinic_dfs, s, Inf); if (f == 0) break; ans += f; } if (cnt > 2) { std::abort(); } } 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_array_matrix<u64, 602> g = {}; 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[i][h + j] += c; g[s][i] += c; } } u64 ans = 0; for (const usize i : rep(0, h)) { const u64 c = scan<u64>(); ans += c; g[i][t] += c; } for (const usize i : rep(0, w)) { const u64 c = scan<u64>(); ans += c; g[h + i][t] += c; } std::cout << ans - nimi::dinic(g, s, t) << std::endl; } } // namespace n91 int main() { n91::main_(); return 0; }