結果

問題 No.957 植林
ユーザー shotoyooshotoyoo
提出日時 2021-10-09 18:38:09
言語 C++17
(gcc 12.3.0 + boost 1.83.0)
結果
AC  
実行時間 361 ms / 2,000 ms
コード長 8,260 bytes
コンパイル時間 2,365 ms
コンパイル使用メモリ 216,008 KB
実行使用メモリ 9,740 KB
最終ジャッジ日時 2023-10-11 05:35:13
合計ジャッジ時間 12,816 ms
ジャッジサーバーID
（参考情報） 		judge13 / judge15
このコードへのチャレンジ
（要ログイン）

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 1 ms
4,352 KB
testcase_01 AC 2 ms
4,348 KB
testcase_02 AC 1 ms
4,348 KB
testcase_03 AC 22 ms
8,640 KB
testcase_04 AC 22 ms
8,300 KB
testcase_05 AC 23 ms
9,060 KB
testcase_06 AC 25 ms
8,900 KB
testcase_07 AC 23 ms
8,732 KB
testcase_08 AC 18 ms
8,696 KB
testcase_09 AC 18 ms
8,868 KB
testcase_10 AC 19 ms
9,008 KB
testcase_11 AC 18 ms
8,812 KB
testcase_12 AC 18 ms
8,708 KB
testcase_13 AC 15 ms
7,784 KB
testcase_14 AC 19 ms
8,912 KB
testcase_15 AC 18 ms
8,836 KB
testcase_16 AC 15 ms
7,560 KB
testcase_17 AC 17 ms
8,504 KB
testcase_18 AC 242 ms
8,828 KB
testcase_19 AC 261 ms
8,948 KB
testcase_20 AC 288 ms
9,060 KB
testcase_21 AC 280 ms
8,900 KB
testcase_22 AC 299 ms
9,160 KB
testcase_23 AC 313 ms
9,248 KB
testcase_24 AC 332 ms
9,232 KB
testcase_25 AC 344 ms
9,552 KB
testcase_26 AC 338 ms
9,460 KB
testcase_27 AC 341 ms
9,460 KB
testcase_28 AC 343 ms
9,740 KB
testcase_29 AC 344 ms
9,456 KB
testcase_30 AC 361 ms
9,640 KB
testcase_31 AC 248 ms
8,580 KB
testcase_32 AC 264 ms
8,860 KB
testcase_33 AC 280 ms
8,872 KB
testcase_34 AC 281 ms
8,908 KB
testcase_35 AC 293 ms
9,172 KB
testcase_36 AC 312 ms
9,192 KB
testcase_37 AC 331 ms
9,200 KB
testcase_38 AC 342 ms
9,548 KB
testcase_39 AC 343 ms
9,632 KB
testcase_40 AC 337 ms
9,660 KB
testcase_41 AC 14 ms
9,640 KB
testcase_42 AC 14 ms
9,472 KB
testcase_43 AC 21 ms
9,632 KB
testcase_44 AC 22 ms
9,668 KB
testcase_45 AC 2 ms
4,352 KB
testcase_46 AC 2 ms
4,352 KB
testcase_47 AC 2 ms
4,348 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

 bool TEST = false;

using namespace std;
#include<bits/stdc++.h>
#include<fstream>

#define rep(i,n) for(int (i)=0;(i)<(ll)(n);i++)
#define rrep(i,n) for(int (i)=(ll)(n)-1;(i)>=0;i--)
#define range(i,start,end,step) for(int (i)=start;(i)<(ll)(end);(i)+=(step))
#define rrange(i,start,end,step) for(int (i)=start;(i)>(ll)(end);(i)+=(step))

#define dump(x)  cerr << "Line " << __LINE__ << ": " <<  #x << " = " << (x) << "\n";
#define spa << " " <<
#define fi first
#define se second
#define all(a)  (a).begin(),(a).end()
#define allr(a)  (a).rbegin(),(a).rend()

using ld = long double;
using ll = long long;
using ull = unsigned long long;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
using pdd = pair<ld, ld>;
 
template<typename T> using V = vector<T>;
template<typename T> using VV = V<V<T>>;
template<typename T, typename T2> using P = pair<T, T2>;
template<typename T, typename T2> using M = map<T, T2>;
template<typename T> using S = set<T>;
template<typename T, typename T2> using UM = unordered_map<T, T2>;
template<typename T> using PQ = priority_queue<T, V<T>, greater<T>>;
template<typename T> using rPQ = priority_queue<T, V<T>, less<T>>;
template<typename T> vector<T> make_vec(size_t n, T a) { return vector<T>(n, a); }
template<typename... Ts> auto make_vec(size_t n, Ts... ts) { return vector<decltype(make_vec(ts...))>(n, make_vec(ts...)); }
template<class SS, class T> ostream& operator << (ostream& os, const pair<SS, T> v){os << "(" << v.first << ", " << v.second << ")"; return os;}
template<typename T> ostream& operator<<(ostream &os, const vector<T> &v) { for (auto &e : v) os << e << ' '; return os; }
template<class T> ostream& operator<<(ostream& os, const vector<vector<T>> &v){ for(auto &e : v){os << e << "\n";} return os;}
struct fast_ios { fast_ios(){ cin.tie(nullptr); ios::sync_with_stdio(false); cout << fixed << setprecision(20); }; } fast_ios_;
 
template <class T> void UNIQUE(vector<T> &x) {sort(all(x));x.erase(unique(all(x)), x.end());}
template<class T> bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T> bool chmin(T &a, const T &b) { if (a>b) { a=b; return 1; } return 0; }
void fail() { cout << -1 << '\n'; exit(0); }
inline int popcount(const int x) { return __builtin_popcount(x); }
inline int popcount(const ll x) { return __builtin_popcountll(x); }
template<typename T> void debug(vector<vector<T>>&v){for(ll i=0;i<v.size();i++)
{cerr<<v[i][0];for(ll j=1;j<v[i].size();j++)cerr spa v[i][j];cerr<<"\n";}};
template<typename T> void debug(vector<T>&v){if(v.size()!=0)cerr<<v[0];
for(ll i=1;i<v.size();i++)cerr spa v[i];
cerr<<"\n";};
template<typename T> P<T,T> divmod(T a, T b) {return make_pair(a/b, a%b);}

const ll INF = (1ll<<62);
// const ld EPS   = 1e-10;
// const ld PI    = acos(-1.0);


template <class T> struct simple_queue {
    std::vector<T> payload;
    int pos = 0;
    void reserve(int n) { payload.reserve(n); }
    int size() const { return int(payload.size()) - pos; }
    bool empty() const { return pos == int(payload.size()); }
    void push(const T& t) { payload.push_back(t); }
    T& front() { return payload[pos]; }
    void clear() {
        payload.clear();
        pos = 0;
    }
    void pop() { pos++; }
};


template <class Cap> struct mf_graph {
  public:
    mf_graph() : _n(0) {}
    explicit mf_graph(int n) : _n(n), g(n) {}

    int add_edge(int from, int to, Cap cap) {
        assert(0 <= from && from < _n);
        assert(0 <= to && to < _n);
        assert(0 <= cap);
        int m = int(pos.size());
        pos.push_back({from, int(g[from].size())});
        int from_id = int(g[from].size());
        int to_id = int(g[to].size());
        if (from == to) to_id++;
        g[from].push_back(_edge{to, to_id, cap});
        g[to].push_back(_edge{from, from_id, 0});
        return m;
    }

    struct edge {
        int from, to;
        Cap cap, flow;
    };

    edge get_edge(int i) {
        int m = int(pos.size());
        assert(0 <= i && i < m);
        auto _e = g[pos[i].first][pos[i].second];
        auto _re = g[_e.to][_e.rev];
        return edge{pos[i].first, _e.to, _e.cap + _re.cap, _re.cap};
    }
    std::vector<edge> edges() {
        int m = int(pos.size());
        std::vector<edge> result;
        for (int i = 0; i < m; i++) {
            result.push_back(get_edge(i));
        }
        return result;
    }
    void change_edge(int i, Cap new_cap, Cap new_flow) {
        int m = int(pos.size());
        assert(0 <= i && i < m);
        assert(0 <= new_flow && new_flow <= new_cap);
        auto& _e = g[pos[i].first][pos[i].second];
        auto& _re = g[_e.to][_e.rev];
        _e.cap = new_cap - new_flow;
        _re.cap = new_flow;
    }

    Cap flow(int s, int t) {
        return flow(s, t, std::numeric_limits<Cap>::max());
    }
    Cap flow(int s, int t, Cap flow_limit) {
        assert(0 <= s && s < _n);
        assert(0 <= t && t < _n);
        assert(s != t);

        std::vector<int> level(_n), iter(_n);
        simple_queue<int> que;

        auto bfs = [&]() {
            std::fill(level.begin(), level.end(), -1);
            level[s] = 0;
            que.clear();
            que.push(s);
            while (!que.empty()) {
                int v = que.front();
                que.pop();
                for (auto e : g[v]) {
                    if (e.cap == 0 || level[e.to] >= 0) continue;
                    level[e.to] = level[v] + 1;
                    if (e.to == t) return;
                    que.push(e.to);
                }
            }
        };
        auto dfs = [&](auto self, int v, Cap up) {
            if (v == s) return up;
            Cap res = 0;
            int level_v = level[v];
            for (int& i = iter[v]; i < int(g[v].size()); i++) {
                _edge& e = g[v][i];
                if (level_v <= level[e.to] || g[e.to][e.rev].cap == 0) continue;
                Cap d =
                    self(self, e.to, std::min(up - res, g[e.to][e.rev].cap));
                if (d <= 0) continue;
                g[v][i].cap += d;
                g[e.to][e.rev].cap -= d;
                res += d;
                if (res == up) return res;
            }
            level[v] = _n;
            return res;
        };

        Cap flow = 0;
        while (flow < flow_limit) {
            bfs();
            if (level[t] == -1) break;
            std::fill(iter.begin(), iter.end(), 0);
            Cap f = dfs(dfs, t, flow_limit - flow);
            if (!f) break;
            flow += f;
        }
        return flow;
    }

    std::vector<bool> min_cut(int s) {
        std::vector<bool> visited(_n);
        simple_queue<int> que;
        que.push(s);
        while (!que.empty()) {
            int p = que.front();
            que.pop();
            visited[p] = true;
            for (auto e : g[p]) {
                if (e.cap && !visited[e.to]) {
                    visited[e.to] = true;
                    que.push(e.to);
                }
            }
        }
        return visited;
    }

  private:
    int _n;
    struct _edge {
        int to, rev;
        Cap cap;
    };
    std::vector<std::pair<int, int>> pos;
    std::vector<std::vector<_edge>> g;
};



void Main(){
    ll h,w;
    cin >> h >> w;
    VV<ll> gs(h, V<ll>(w));
    rep(i,h) rep(j,w) cin >> gs[i][j];
    V<ll> r(h);
    V<ll> c(w);
    ll rr = 0;
    ll cc = 0;
    rep(i,h) cin >> r[i];
    rep(i,h) rr += r[i];
    rep(j,w) cin >> c[j];
    rep(j,w) cc += c[j];
    // debug(gs);
    // debug(r);
    // debug(c);
    ll s = h+w;
    ll t = h+w+1;
    mf_graph<ll> g(h+w+2);
    rep(i,h) {
        ll ss = 0;
        rep(j,w) ss += gs[i][j];
        g.add_edge(s, i, ss);
        g.add_edge(i, t, r[i]);
    }
    rep(j,w) {
        g.add_edge(s, j+h, 0);
        g.add_edge(j+h, t, c[j]);
        rep(i,h) g.add_edge(i, j+h, gs[i][j]);
    }
    auto ans = g.flow(s,t);
    cout << -(ans - rr - cc) << endl;
}

int main(void){
    std::ifstream in("tmp_in");
    if (TEST) {
        std::cin.rdbuf(in.rdbuf());
        std::cout << std::fixed << std::setprecision(15);
    } else {
        std::cin.tie(nullptr);
        std::ios_base::sync_with_stdio(false);
        std::cout << std::fixed << std::setprecision(15);
    }
    Main();
}
0