結果
問題 | No.957 植林 |
ユーザー | Pachicobue |
提出日時 | 2019-12-19 22:48:53 |
言語 | C++17 (gcc 12.3.0 + boost 1.83.0) |
結果 |
TLE
|
実行時間 | - |
コード長 | 8,376 bytes |
コンパイル時間 | 2,540 ms |
コンパイル使用メモリ | 216,588 KB |
実行使用メモリ | 35,380 KB |
最終ジャッジ日時 | 2024-07-07 01:59:05 |
合計ジャッジ時間 | 5,835 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge4 |
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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 | 2 ms
13,752 KB |
testcase_01 | AC | 2 ms
6,816 KB |
testcase_02 | AC | 2 ms
6,812 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
#include <bits/stdc++.h> // created [2019/12/19] 21:42:53 #pragma GCC diagnostic ignored "-Wsign-compare" #pragma GCC diagnostic ignored "-Wsign-conversion" using i32 = int32_t; using i64 = int64_t; using u32 = uint32_t; using u64 = uint64_t; using uint = unsigned int; using usize = std::size_t; using ll = long long; using ull = unsigned long long; using ld = long double; template<typename T, usize n> using arr = T (&)[n]; template<typename T, usize n> using c_arr = const T (&)[n]; template<typename T> constexpr T popcount(const T u) { return u ? static_cast<T>(__builtin_popcountll(static_cast<u64>(u))) : static_cast<T>(0); } template<typename T> constexpr T log2p1(const T u) { return u ? static_cast<T>(64 - __builtin_clzll(static_cast<u64>(u))) : static_cast<T>(0); } template<typename T> constexpr T msbp1(const T u) { return log2p1(u); } template<typename T> constexpr T lsbp1(const T u) { return __builtin_ffsll(u); } template<typename T> constexpr T clog(const T u) { return u ? log2p1(u - 1) : static_cast<T>(u); } template<typename T> constexpr bool ispow2(const T u) { return u and (static_cast<u64>(u) & static_cast<u64>(u - 1)) == 0; } template<typename T> constexpr T ceil2(const T u) { return static_cast<T>(1) << clog(u); } template<typename T> constexpr T floor2(const T u) { return u == 0 ? static_cast<T>(0) : static_cast<T>(1) << (log2p1(u) - 1); } template<typename T> constexpr bool btest(const T mask, const usize ind) { return static_cast<bool>((static_cast<u64>(mask) >> ind) & static_cast<u64>(1)); } template<typename T> void bset(T& mask, const usize ind) { mask |= (static_cast<T>(1) << ind); } template<typename T> void breset(T& mask, const usize ind) { mask &= ~(static_cast<T>(1) << ind); } template<typename T> void bflip(T& mask, const usize ind) { mask ^= (static_cast<T>(1) << ind); } template<typename T> void bset(T& mask, const usize ind, const bool b) { (b ? bset(mask, ind) : breset(mask, ind)); } template<typename T> constexpr T bcut(const T mask, const usize ind) { return ind == 0 ? static_cast<T>(0) : static_cast<T>((static_cast<u64>(mask) << (64 - ind)) >> (64 - ind)); } template<typename T> bool chmin(T& a, const T& b) { return (a > b ? a = b, true : false); } template<typename T> bool chmax(T& a, const T& b) { return (a < b ? a = b, true : false); } constexpr unsigned int mod = 1000000007; template<typename T> constexpr T inf_v = std::numeric_limits<T>::max() / 4; template<typename Real> constexpr Real pi_v = Real{3.141592653589793238462643383279502884}; auto mfp = [](auto&& f) { return [=](auto&&... args) { return f(f, std::forward<decltype(args)>(args)...); }; }; template<typename T> T in() { T v; return std::cin >> v, v; } template<typename T, typename Uint, usize n, usize i> T in_v(typename std::enable_if<(i == n), c_arr<Uint, n>>::type) { return in<T>(); } template<typename T, typename Uint, usize n, usize i> auto in_v(typename std::enable_if<(i < n), c_arr<Uint, n>>::type& szs) { const usize s = (usize)szs[i]; std::vector<decltype(in_v<T, Uint, n, i + 1>(szs))> ans(s); for (usize j = 0; j < s; j++) { ans[j] = in_v<T, Uint, n, i + 1>(szs); } return ans; } template<typename T, typename Uint, usize n> auto in_v(c_arr<Uint, n> szs) { return in_v<T, Uint, n, 0>(szs); } template<typename... Types> auto in_t() { return std::tuple<std::decay_t<Types>...>{in<Types>()...}; } struct io_init { io_init() { std::cin.tie(nullptr), std::ios::sync_with_stdio(false); std::cout << std::fixed << std::setprecision(20); } void clear() { std::cin.tie(), std::ios::sync_with_stdio(true); } } io_setting; template<typename T> int out(const T& v) { return std::cout << v, 0; } template<typename T> int out(const std::vector<T>& v) { for (usize i = 0; i < v.size(); i++) { if (i > 0) { std::cout << ' '; } out(v[i]); } return std::cout << "\n", 0; } template<typename T1, typename T2> int out(const std::pair<T1, T2>& v) { return out(v.first), std::cout << ' ', out(v.second), 0; } template<typename T, typename... Args> int out(const T& v, const Args... args) { return out(v), std::cout << ' ', out(args...), 0; } template<typename... Args> int outln(const Args... args) { return out(args...), std::cout << '\n', 0; } template<typename... Args> void outel(const Args... args) { return out(args...), std::cout << std::endl, 0; } # define SHOW(...) static_cast<void>(0) constexpr ull TEN(const usize n) { return n == 0 ? 1ULL : TEN(n - 1) * 10ULL; } template<typename T, typename Uint, usize n, usize i> auto make_v(typename std::enable_if<(i == n), c_arr<Uint, n>>::type, const T& v = T{}) { return v; } template<typename T, typename Uint, usize n, usize i> auto make_v(typename std::enable_if<(i < n), c_arr<Uint, n>>::type szs, const T& v = T{}) { const usize s = (usize)szs[i]; return std::vector<decltype(make_v<T, Uint, n, i + 1>(szs, v))>(s, make_v<T, Uint, n, i + 1>(szs, v)); } template<typename T, typename Uint, usize n> auto make_v(c_arr<Uint, n> szs, const T& t = T{}) { return make_v<T, Uint, n, 0>(szs, t); } template<typename Cap> struct flow { using capacity_type = Cap; flow(const usize v) : sz(v), edges(v) {} void add_edge(const usize from, const usize to, const capacity_type cap) { edges[from].push_back({to, edges[to].size(), cap, false}), edges[to].push_back({from, edges[from].size() - 1, 0, true}); } struct edge { usize to, rev; capacity_type cap; const bool is_rev; }; const std::vector<edge>& operator[](const usize i) const { return edges[i]; } std::vector<edge>& operator[](const usize i) { return edges[i]; } friend std::ostream& operator<<(std::ostream& os, const flow& f) { os << "[\n"; for (usize i = 0; i < f.size(); i++) { for (const auto& e : f[i]) { if (not e.is_rev) { os << i << "->" << e.to << ":" << e.cap << "\n"; } } } return (os << "]\n"); } usize size() const { return sz; } private: const usize sz; std::vector<std::vector<edge>> edges; }; template<typename Cap> Cap ford_fulkerson(flow<Cap>& flow, const usize s, const usize t) { std::vector<bool> checked(flow.size()); auto dfs = [&](auto&& self, const usize pos, const Cap f) -> Cap { if (pos == t) { return f; } checked[pos] = true; for (auto& e : flow[pos]) { if (e.cap == 0 or checked[e.to]) { continue; } const Cap d = self(self, e.to, std::min(f, e.cap)); if (d <= 0) { continue; } e.cap -= d, flow[e.to][e.rev].cap += d; return d; } return 0; }; Cap f = 0; while (true) { std::fill(checked.begin(), checked.end(), false); const Cap df = dfs(dfs, s, inf_v<Cap>); if (df == 0) { break; } f += df; } return f; } int main() { const auto [H, W] = in_t<int, int>(); const auto G = in_v<ll>({H, W}); auto R = in_v<ll>({H}); auto C = in_v<ll>({W}); for (int i = 0; i < H; i++) { for (int j = 0; j < W; j++) { R[i] -= G[i][j]; C[j] -= G[i][j]; } } flow<ll> f(H * W + H + W + 2); const int S = H * W + H + W; const int T = H * W + H + W + 1; ll ans = 0; for (int i = 0; i < H; i++) { if (R[i] <= 0) { f.add_edge(S, i, 0); f.add_edge(i, T, -R[i]); } else { ans += R[i]; f.add_edge(S, i, R[i]); f.add_edge(i, T, 0); } } for (int j = 0; j < W; j++) { if (C[j] <= 0) { f.add_edge(S, H + j, 0); f.add_edge(H + j, T, -C[j]); } else { ans += C[j]; f.add_edge(S, H + j, C[j]); f.add_edge(H + j, T, 0); } } for (int i = 0; i < H; i++) { for (int j = 0; j < W; j++) { const int v = i * W + j + H + W; ans += G[i][j]; f.add_edge(v, i, inf_v<ll>); f.add_edge(v, H + j, inf_v<ll>); f.add_edge(S, v, G[i][j]); f.add_edge(v, T, 0); } } SHOW(R, C); SHOW(f, S, T); outln(ans - ford_fulkerson(f, S, T)); return 0; }