結果
問題 | No.177 制作進行の宮森あおいです! |
ユーザー |
|
提出日時 | 2020-05-17 03:18:21 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 103 ms / 2,000 ms |
コード長 | 4,930 bytes |
コンパイル時間 | 2,443 ms |
コンパイル使用メモリ | 80,696 KB |
実行使用メモリ | 51,908 KB |
最終ジャッジ日時 | 2024-09-24 07:59:07 |
合計ジャッジ時間 | 4,419 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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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
import java.io.IOException;import java.io.InputStream;import java.util.ArrayList;import java.util.Arrays;import java.util.NoSuchElementException;import java.util.PriorityQueue;class Edge {int src,dst,rev;int res;public Edge(int src,int dst,int res,int rev) {this.src=src;this.dst=dst;this.res=res;this.rev=rev;}}public class Main{public static void main(String[] args) {new Main().run();}int f(int s,int t,ArrayList<Edge>[] g) {int n=g.length;int flow=0;class State implements Comparable<State>{int v;int res;public State(int v,int res) {this.v=v;this.res=res;}public int compareTo(State o) {return -Integer.compare(res, o.res);};}int INF=Integer.MAX_VALUE/3;while (true) {PriorityQueue<State> pq=new PriorityQueue<>();pq.add(new State(s,INF));int[] res=new int[n];int[] backedge=new int[n];Arrays.fill(backedge, -1);res[s]=INF;while (!pq.isEmpty()) {State state=pq.poll();if (res[state.v]>state.res) continue;for (var e:g[state.v]) {int nres=Math.min(e.res, state.res);if (nres <= res[e.dst]) continue;res[e.dst]=nres;backedge[e.dst]=e.rev;pq.add(new State(e.dst, nres));}}if (res[t]==0) break;flow+=res[t];for (int cur=t;cur!=s;) {Edge e=g[cur].get(backedge[cur]);e.res+=res[t];g[e.dst].get(e.rev).res-=res[t];cur=e.dst;}}return flow;}void run() {FastScanner sc=new FastScanner();int INF=Integer.MAX_VALUE/3;int W=sc.nextInt();int N=sc.nextInt();int[] J=new int[N];for (int i=0;i<N;++i) J[i]=sc.nextInt();int M=sc.nextInt();int[] C=new int[M];for (int i=0;i<M;++i) C[i]=sc.nextInt();boolean[][] connect=new boolean[N][M];for (int i=0;i<N;++i) for (int j=0;j<M;++j) connect[i][j]=true;for (int i=0;i<M;++i) {int Q=sc.nextInt();for (int q=0;q<Q;++q) {int x=sc.nextInt()-1;connect[x][i]=false;}}int s=N+M;int t=N+M+1;ArrayList<Edge>[] g=new ArrayList[N+M+2];for (int i=0;i<N+M+2;++i) g[i]=new ArrayList<>();for (int i=0;i<N;++i) {for (int j=0;j<M;++j) {if (connect[i][j]) {Edge e0=new Edge(i,j+N,INF,g[j+N].size());Edge e1=new Edge(j+N,i,0,g[i].size());g[i].add(e0);g[j+N].add(e1);}}}for (int i=0;i<N;++i) {Edge e0=new Edge(s,i,J[i],g[i].size());Edge e1=new Edge(i,s,0,g[s].size());g[s].add(e0);g[i].add(e1);}for (int i=0;i<M;++i) {Edge e0=new Edge(i+N,t,C[i],g[t].size());Edge e1=new Edge(t,i+N,0,g[i+N].size());g[i+N].add(e0);g[t].add(e1);}if (f(s,t,g) >= W) {System.out.println("SHIROBAKO");} else {System.out.println("BANSAKUTSUKITA");}}void tr(Object...objects) {System.out.println(Arrays.deepToString(objects));}}class FastScanner {private final InputStream in = System.in;private final byte[] buffer = new byte[1024];private int ptr = 0;private int buflen = 0;private boolean hasNextByte() {if (ptr < buflen) {return true;}else{ptr = 0;try {buflen = in.read(buffer);} catch (IOException e) {e.printStackTrace();}if (buflen <= 0) {return false;}}return true;}private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}public String next() {if (!hasNext()) throw new NoSuchElementException();StringBuilder sb = new StringBuilder();int b = readByte();while(isPrintableChar(b)) {sb.appendCodePoint(b);b = readByte();}return sb.toString();}public long nextLong() {if (!hasNext()) throw new NoSuchElementException();long n = 0;boolean minus = false;int b = readByte();if (b == '-') {minus = true;b = readByte();}if (b < '0' || '9' < b) {throw new NumberFormatException();}while(true){if ('0' <= b && b <= '9') {n *= 10;n += b - '0';}else if(b == -1 || !isPrintableChar(b)){return minus ? -n : n;}else{throw new NumberFormatException();}b = readByte();}}public int nextInt() {long nl = nextLong();if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) throw new NumberFormatException();return (int) nl;}public double nextDouble() { return Double.parseDouble(next());}}