結果
問題 | No.957 植林 |
ユーザー | hitonanode |
提出日時 | 2021-08-25 03:35:29 |
言語 | C++23 (gcc 12.3.0 + boost 1.83.0) |
結果 |
AC
|
実行時間 | 569 ms / 2,000 ms |
コード長 | 3,626 bytes |
コンパイル時間 | 3,684 ms |
コンパイル使用メモリ | 269,456 KB |
実行使用メモリ | 11,008 KB |
最終ジャッジ日時 | 2024-11-15 18:51:42 |
合計ジャッジ時間 | 18,152 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 | 2 ms
5,248 KB |
testcase_01 | AC | 2 ms
5,248 KB |
testcase_02 | AC | 2 ms
5,248 KB |
testcase_03 | AC | 22 ms
10,112 KB |
testcase_04 | AC | 21 ms
9,600 KB |
testcase_05 | AC | 22 ms
10,112 KB |
testcase_06 | AC | 26 ms
10,368 KB |
testcase_07 | AC | 22 ms
9,728 KB |
testcase_08 | AC | 16 ms
10,112 KB |
testcase_09 | AC | 15 ms
10,112 KB |
testcase_10 | AC | 16 ms
10,368 KB |
testcase_11 | AC | 16 ms
10,112 KB |
testcase_12 | AC | 16 ms
9,984 KB |
testcase_13 | AC | 13 ms
8,448 KB |
testcase_14 | AC | 16 ms
10,496 KB |
testcase_15 | AC | 15 ms
9,728 KB |
testcase_16 | AC | 13 ms
8,192 KB |
testcase_17 | AC | 14 ms
9,344 KB |
testcase_18 | AC | 413 ms
9,728 KB |
testcase_19 | AC | 431 ms
10,112 KB |
testcase_20 | AC | 443 ms
10,368 KB |
testcase_21 | AC | 473 ms
10,496 KB |
testcase_22 | AC | 493 ms
10,496 KB |
testcase_23 | AC | 507 ms
10,496 KB |
testcase_24 | AC | 520 ms
10,880 KB |
testcase_25 | AC | 563 ms
11,008 KB |
testcase_26 | AC | 560 ms
11,008 KB |
testcase_27 | AC | 564 ms
11,008 KB |
testcase_28 | AC | 558 ms
11,008 KB |
testcase_29 | AC | 560 ms
11,008 KB |
testcase_30 | AC | 558 ms
11,008 KB |
testcase_31 | AC | 404 ms
9,728 KB |
testcase_32 | AC | 432 ms
10,240 KB |
testcase_33 | AC | 439 ms
10,368 KB |
testcase_34 | AC | 464 ms
10,496 KB |
testcase_35 | AC | 490 ms
10,496 KB |
testcase_36 | AC | 506 ms
10,496 KB |
testcase_37 | AC | 513 ms
10,752 KB |
testcase_38 | AC | 561 ms
11,008 KB |
testcase_39 | AC | 552 ms
10,880 KB |
testcase_40 | AC | 569 ms
11,008 KB |
testcase_41 | AC | 14 ms
11,008 KB |
testcase_42 | AC | 14 ms
11,008 KB |
testcase_43 | AC | 20 ms
11,008 KB |
testcase_44 | AC | 21 ms
11,008 KB |
testcase_45 | AC | 2 ms
5,248 KB |
testcase_46 | AC | 2 ms
5,248 KB |
testcase_47 | AC | 2 ms
5,248 KB |
ソースコード
#include <bits/stdc++.h> #pragma GCC optimize("O3", "unroll-loops") #pragma GCC target("avx") using namespace std; using lint = long long int; using pint = pair<int, int>; using plint = pair<lint, lint>; struct fast_ios { fast_ios(){ cin.tie(0); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_; #define ALL(x) (x).begin(), (x).end() #define FOR(i, begin, end) for(int i=(begin),i##_end_=(end);i<i##_end_;i++) #define IFOR(i, begin, end) for(int i=(end)-1,i##_begin_=(begin);i>=i##_begin_;i--) #define REP(i, n) FOR(i,0,n) #define IREP(i, n) IFOR(i,0,n) template<typename T> istream &operator>>(istream &is, vector<T> &vec){ for (auto &v : vec) is >> v; return is; } ///// This part below is only for debug, not used ///// template<typename T> ostream &operator<<(ostream &os, const vector<T> &vec){ os << "["; for (auto v : vec) os << v << ","; os << "]"; return os; } template<typename T1, typename T2> ostream &operator<<(ostream &os, const pair<T1, T2> &pa){ os << "(" << pa.first << "," << pa.second << ")"; return os; } #define dbg(x) cerr << #x << " = " << (x) << " (L" << __LINE__ << ") " << __FILE__ << endl; ///// END ///// class Maxflow { using T = lint; struct edge { int to; T cap; int rev; }; std::vector<std::vector<edge> > edges; std::vector<int> level; std::vector<int> iter; void bfs(int s) { level = std::vector<int>(edges.size(), -1); std::queue<int> q; level[s] = 0; q.push(s); while (!q.empty()) { int v = q.front(); q.pop(); for (edge &e : edges[v]) { if (e.cap > 0 && level[e.to] < 0) { level[e.to] = level[v] + 1; q.push(e.to); } } } } T dfs_d(int v, int goal, T f) { if (v == goal) return f; for (int &i = iter[v]; i < (int)edges[v].size(); i++) { edge &e = edges[v][i]; if (e.cap > 0 && level[v] < level[e.to]) { T d = dfs_d(e.to, goal, std::min(f, e.cap)); if (d > 0) { e.cap -= d; edges[e.to][e.rev].cap += d; return d; } } } return 0; } public: Maxflow(int N) { edges.resize(N); } void add_edge(int from, int to, T capacity) { edges[from].push_back(edge{to, capacity, (int)edges[to].size()}); edges[to].push_back(edge{from, (T)0, (int)edges[from].size() - 1}); } T Dinic(int s, int t) { constexpr T INF = std::numeric_limits<T>::max(); T flow = 0; while (true) { bfs(s); if (level[t] < 0) return flow; iter = std::vector<int>(edges.size(), 0); T f; while ((f = dfs_d(s, t, INF)) > 0) flow += f; } } }; int main() { int H, W; cin >> H >> W; vector<vector<lint>> G(H, vector<lint>(W)); cin >> G; vector<lint> R(H), C(W); cin >> R >> C; lint tot = accumulate(ALL(R), 0LL) + accumulate(ALL(C), 0LL); vector<lint> EW(W); lint f1 = 0; int Z = 1 + H + W; Maxflow g(Z + 1); REP(i, H) { lint gtot = accumulate(ALL(G[i]), 0LL); lint f0 = min(gtot, R[i]); f1 += f0; g.add_edge(0, i + 1, gtot - f0); } REP(j, W) g.add_edge(H + 1 + j, Z, C[j]); REP(i, H) REP(j, W) g.add_edge(i + 1, H + 1 + j, G[i][j]); lint f2 = g.Dinic(0, Z); cout << tot - f1 - f2 << endl; }