結果

問題 No.177 制作進行の宮森あおいです！
ユーザー cro68831269
提出日時 2022-05-25 13:53:33
言語 C++17
(gcc 13.3.0 + boost 1.87.0)
結果
AC  
実行時間 3 ms / 2,000 ms
コード長 4,132 bytes
コンパイル時間 2,266 ms
コンパイル使用メモリ 207,316 KB
最終ジャッジ日時 2025-01-29 15:16:27
ジャッジサーバーID
（参考情報） 		judge1 / judge2
このコードへのチャレンジ
（要ログイン）
ファイルパターン 結果
sample AC * 3
other AC * 13
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 #
プレゼンテーションモードにする

#include <bits/stdc++.h>
using namespace std;
// #include<atcoder/all>
// using namespace atcoder;
using ll = long long;
template<class T> using V = std::vector<T>;
#define REP(i, n) for (ll i=(ll)0; i<(ll)(n); i++)
#define REPS(i, s, n) for (ll i=(ll)(s); i<(ll)(n); i++)
#define RREP(i, n) for (ll i=(ll)(n); i>(ll)0; i--)
#define RREPS(i, s, n) for (ll i=(ll)(n); i>(ll)(s); i--)
#define ALL(c) std::begin((c)), std::end((c))
struct io {io() {cin.tie(0); ios::sync_with_stdio(0);} } caller;
template<typename T>
struct DinicCapacityScaling{
    static_assert(is_integral<T>::value, "template parameter T must be integral type");
    private:
        const T INF;
        struct edge{
            int to;
            T cap;
            int rev;
            bool isrev;
            int idx;
        };
        vector<vector<edge>> graph;
        vector<int> min_cost, iter;
        T max_cap;
        bool build_augment_path(int s, int t, const T &base){
            min_cost.assign(graph.size(), -1);
            queue<int> que;
            min_cost[s] = 0;
            que.push(s);
            while (!que.empty() && min_cost[t] == -1){
                int p = que.front();
                que.pop();
                for (auto &e : graph[p]){
                    if (e.cap >= base && min_cost[e.to] == -1){
                        min_cost[e.to] = min_cost[p] + 1;
                        que.push(e.to);
                    }
                }
            }
            return min_cost[t] != -1;
        }
        T find_augment_path(int idx, const int t, T base, T flow){
            if (idx == t) return flow;
            T sum = 0;
            for(int &i = iter[idx]; i < (int)graph[idx].size(); i++){
                edge &e = graph[idx][i];
                if (e.cap >= base && min_cost[idx] < min_cost[e.to]){
                    T d = find_augment_path(e.to, t, base, min(flow - sum, e.cap));
                    if (d > 0){
                        e.cap -= d;
                        graph[e.to][e.rev].cap += d;
                        sum += d;
                        if (flow - sum < base) break;
                    }
                }
            }
            return sum;
        }
    public:
        explicit DinicCapacityScaling(int V) : INF(numeric_limits<T>::max()), graph(V), max_cap(0) {}
        void add_edge(int from, int to, T cap, int idx = -1){
            max_cap = max(max_cap, cap);
            graph[from].emplace_back((edge){to, cap, (int)graph[to].size(), false, idx});
            graph[to].emplace_back((edge){from, 0, (int)graph[from].size() - 1, true, idx});
        }
        T max_flow(int s, int t){
            if (max_cap == T(0)) return T(0);
            T flow = 0;
            for (int i = 63 - __builtin_clzll(max_cap); i >= 0; i--){
                T now = T(1) << i;
                while (build_augment_path(s, t, now)){
                    iter.assign(graph.size(), 0);
                    flow += find_augment_path(s, t, now, INF);
                }
            }
            return flow;
        }
        void output(){
            for (int i = 0; i < (int)graph.size(); i++){
                for (auto &e : graph[i]){
                    if (e.isrev) continue;
                    auto &rev_e = graph[e.to][e.rev];
                    cout << i << "->" << e.to << " (flow: " << rev_e.cap << "/" << e.cap + rev_e.cap << ")" << endl;
                }
            }
        }
};
int main(){
    int w, n, m;
    cin >> w >> n;
    V<int> j(n);
    REP (i, n) cin >> j[i];
    cin >> m;
    V<int> c(m);
    REP (i, m) cin >> c[i];
    DinicCapacityScaling<int> mf(n + m + 2);
    REP (i, n) mf.add_edge(n + m, i, j[i]);
    REP (i, m) mf.add_edge(i + n, n + m + 1, c[i]);
    int q;
    REP (i, m){
        cin >> q;
        V<int> x(q);
        REP (j, q) cin >> x[j];
        REP (j, n){
            if (!binary_search(ALL(x), j + 1)){
                mf.add_edge(j, i + n, c[i]);
            }
        }
    }
    if (mf.max_flow(n + m, n + m + 1) >= w) cout << "SHIROBAKO" << endl;
    else  cout << "BANSAKUTSUKITA" << endl;
    
    return 0;
}
הההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההההה
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX
0