#450822 (Java) No.107 モンスター

• 問題: No.107 モンスター
• ユーザー: 37zigen
• 提出日時: 2020-03-29 01:03:53
• 言語: Java (openjdk 23)
• 結果: AC
• 実行時間: 154 ms / 5,000 ms
• コード長: 3,103 bytes
• コンパイル時間: 3,107 ms
• コンパイル使用メモリ: 80,780 KB
• 実行使用メモリ: 55,300 KB
• 最終ジャッジ日時: 2025-01-02 12:33:51
• 合計ジャッジ時間: 7,198 ms
• ジャッジサーバーID （参考情報）: judge3 / judge1

ファイルパターン	結果
sample	AC * 4
other	AC * 21

ソースコード

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import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.NoSuchElementException;
import java.util.Scanner;
public class Main { 
    public static void main(String[] args) {
        //long t = System.currentTimeMillis();
        new Main().run();
        //System.err.println(System.currentTimeMillis() - t);
    }
    
    int get(int[] D,int s) {
        int ret=100;
        for(int i=0;i<D.length;++i) {
            if((s>>i)%2==0)continue;
            if(D[i]<0)ret+=100;
        }
        return ret;
    }
    
    void run() {
        Scanner sc=new Scanner(System.in);
        int N=sc.nextInt();
        int[] D=new int[N];
        for(int i=0;i<N;++i)D[i]=sc.nextInt();
        int[] dp=new int[1<<N];
        dp[0]=100;
        for(int s=0;s<1<<N;++s) {
            if(dp[s]==0)continue;
            for(int next=0;next<N;++next) {
                if((s>>next)%2==1)continue;
                int ns=s|1<<next;
                int HP=get(D,s);
                if(D[next]>0) {
                    dp[ns]=Math.max(dp[ns], Math.min(HP,dp[s]+D[next]));
                }else {
                    if(dp[s]+D[next]<=0)continue;
                    dp[ns]=Math.max(dp[ns], dp[s]+D[next]);
                }
            }
        }
        System.out.println(dp[(1<<N)-1]);
    }
    
    
    static 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;}
    private void skipUnprintable() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;}
    public boolean hasNext() { skipUnprintable(); 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() {
        return (int)nextLong();
    }
}
 
 
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