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 | 2020-10-13 14:50:43 |
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 | 3,082 bytes |
コンパイル時間 | 2,122 ms |
コンパイル使用メモリ | 180,992 KB |
実行使用メモリ | 5,376 KB |
最終ジャッジ日時 | 2024-07-20 18:28:58 |
合計ジャッジ時間 | 2,964 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge4 |
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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
/*** @FileName a.cpp* @Author kanpurin* @Created 2020.10.13 14:50:38**/#include "bits/stdc++.h"using namespace std;typedef long long ll;struct Dinic {private:struct edge {int to;ll cap;int rev;bool isrev;int idx;};vector< vector< edge > > graph;vector< int > min_cost, iter;bool bfs(int s, int t) {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 > 0 && min_cost[e.to] == -1) {min_cost[e.to] = min_cost[p] + 1;que.push(e.to);}}}return min_cost[t] != -1;}ll dfs(int idx, const int t, ll flow) {if (idx == t) return flow;for (int &i = iter[idx]; i < graph[idx].size(); i++) {edge &e = graph[idx][i];if (e.cap > 0 && min_cost[idx] < min_cost[e.to]) {ll d = dfs(e.to, t, min(flow, e.cap));if (d > 0) {e.cap -= d;graph[e.to][e.rev].cap += d;return d;}}}return 0;}public:Dinic(int V) : graph(V) {}void add_edge(int from, int to, ll cap, int idx = -1) {graph[from].push_back({to, cap, (int)graph[to].size(), false, idx});graph[to].push_back({from, 0, (int)graph[from].size() - 1, true, idx});}ll max_flow(int s, int t) {ll flow = 0;while (bfs(s, t)) {iter.assign(graph.size(), 0);ll f = 0;while ((f = dfs(s, t, 1e9 + 6)) > 0) flow += f;}return flow;}void output() {for (int i = 0; i < 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;cin >> w;int n;cin >> n;vector<int> j(n);for (int i = 0; i < n; i++) {cin >> j[i];}int m;cin >> m;vector<int> c(m);for (int i = 0; i < m; i++) {cin >> c[i];}Dinic g(n+m+2);int s = n+m, t = n+m+1;for (int i = 0; i < n; i++) {g.add_edge(s,i,j[i]);}for (int j = 0; j < m; j++) {g.add_edge(n+j,t,c[j]);}for (int i = 0; i < m; i++) {int q;cin >> q;vector<bool> ok(n,true);for (int j = 0; j < q; j++) {int x;cin >> x;x--;ok[x] = false;}for (int j = 0; j < n; j++) {if (ok[j]) g.add_edge(j,i+n,10000);}}if (g.max_flow(s,t) >= w) puts("SHIROBAKO");else puts("BANSAKUTSUKITA");return 0;}