結果
問題 | No.177 制作進行の宮森あおいです! |
ユーザー |
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提出日時 | 2019-10-18 12:04:02 |
言語 | C++14 (gcc 13.3.0 + boost 1.87.0) |
結果 |
AC
|
実行時間 | 3 ms / 2,000 ms |
コード長 | 3,252 bytes |
コンパイル時間 | 2,293 ms |
コンパイル使用メモリ | 184,856 KB |
実行使用メモリ | 6,944 KB |
最終ジャッジ日時 | 2024-06-25 14:08:12 |
合計ジャッジ時間 | 3,022 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 13 |
ソースコード
#include <bits/stdc++.h>using namespace std;using ll = long long;using PII = pair<ll, ll>;#define FOR(i, a, n) for (ll i = (ll)a; i < (ll)n; ++i)#define REP(i, n) FOR(i, 0, n)#define ALL(x) x.begin(), x.end()template<typename T> void chmin(T &a, const T &b) { a = min(a, b); }template<typename T> void chmax(T &a, const T &b) { a = max(a, b); }struct FastIO {FastIO() { cin.tie(0); ios::sync_with_stdio(0); }}fastiofastio;#ifdef DEBUG_#include "../program_contest_library/memo/dump.hpp"#else#define dump(...)#endifconst ll INF = 1LL<<60;struct dinic {struct edge{int to;ll cap;int rev;bool isrev;};vector<vector<edge>> G;vector<int> level, iter;void bfs(int s) {level.assign(G.size(), -1);queue<int> que;level[s] = 0;que.push(s);while(que.size()) {int v = que.front(); que.pop();for(auto i: G[v]) {if(i.cap > 0 && level[i.to] < 0) {level[i.to] = level[v] + 1;que.push(i.to);}}}}ll dfs(int v, const int t, ll f) {if(v == t) return f;for(edge &e: G[v]) {if(e.cap > 0 && level[v] < level[e.to]) {ll d = dfs(e.to, t, min(f, e.cap));if(d > 0) {e.cap -= d;G[e.to][e.rev].cap += d;return d;}}}return 0;}dinic() {}dinic(int n) : G(n), level(n), iter(n) {}void add_edge(int from, int to, ll cap) {G[from].push_back({to, cap, (int)G[to].size(), false});G[to].push_back({from, 0, (int)G[from].size()-1, true});}ll max_flow(int s, int t) {ll flow = 0;while(1) {bfs(s);if(level[t] < 0) return flow;iter.assign(G.size(), 0);ll f;while((f = dfs(s, t, INF)) > 0) flow += f;}}friend ostream &operator <<(ostream& out, const dinic& a){out << "-----" << endl;for(int i = 0; i < (int)a.G.size(); i++) {for(auto &e : a.G[i]) {if(e.isrev) continue;auto &rev_e = a.G[e.to][e.rev];out << i << "->" << e.to << " (flow: " << rev_e.cap << "/" << e.cap + rev_e.cap << ")" << endl;}}out << "-----" << endl;return out;}};int main(void) {ll w, n;cin >> w >> n;vector<ll> a(n);REP(i, n) cin >> a[i];ll m;cin >> m;vector<ll> b(m);REP(i, m) cin >> b[i];vector<vector<ll>> v(n, vector<ll>(m, 1));REP(i, m) {ll q;cin >> q;REP(j, q) {ll x;cin >> x;x--;v[x][i] = 0;}}dump(v);dinic flow(n+m+2);ll s = n+m, t = n+m+1;REP(i, n) flow.add_edge(s, i, a[i]);REP(i, m) flow.add_edge(n+i, t, b[i]);REP(i, n) REP(j, m) if(v[i][j]==1) flow.add_edge(i, n+j, INF);ll ret = flow.max_flow(s, t);if(ret >= w) cout << "SHIROBAKO" << endl;else cout << "BANSAKUTSUKITA" << endl;return 0;}