結果

問題 No.5001 排他的論理和でランニング
ユーザー uafr_cs
提出日時 2018-03-17 03:10:47
言語 Java
(openjdk 23)
結果
AC  
実行時間 1,022 ms / 1,500 ms
コード長 1,917 bytes
コンパイル時間 2,297 ms
実行使用メモリ 56,316 KB
スコア 52,428,290
最終ジャッジ日時 2020-03-12 19:58:52
ジャッジサーバーID
（参考情報） 		judge10 /
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ファイルパターン 結果
other AC * 50
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ソースコード

diff #
プレゼンテーションモードにする

import java.util.ArrayList;
import java.util.Arrays;
import java.util.LinkedList;
import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        
        final int N = sc.nextInt();
        final int M = sc.nextInt();
        
        long[] array = new long[N];
        for(int i = 0; i < N; i++){
            array[i] = sc.nextLong();
        }
        Arrays.sort(array);
        
        boolean[] used = new boolean[N];
        long max = 0;
        for(int i = 0; i < M; i++){
            used[(N - 1) - i] = true;
            max ^= array[(N - 1) - i];
        }
        
        for(int x = 0; x < 2000000; x++){
            final int x1 = (int)(Math.random() * N);
            final int x2 = (int)(Math.random() * N);
            final int x3 = (int)(Math.random() * N);
            final int x4 = (int)(Math.random() * N);
            //final int x5 = (int)(Math.random() * N);
            //final int x6 = (int)(Math.random() * N);
                        
            int count = 0;
            count += used[x1] ? 1 : -1; used[x1] = !used[x1];
            count += used[x2] ? 1 : -1; used[x2] = !used[x2];
            count += used[x3] ? 1 : -1; used[x3] = !used[x3];
            count += used[x4] ? 1 : -1; used[x4] = !used[x4];
            //count += used[x5] ? 1 : -1; used[x5] = !used[x5];
            //count += used[x6] ? 1 : -1; used[x6] = !used[x6];
            if(count != 0){
                used[x1] = !used[x1];
                used[x2] = !used[x2];
                used[x3] = !used[x3];
                used[x4] = !used[x4];
                //used[x5] = !used[x5];
                //used[x6] = !used[x6];
                continue;
            }
            
            final long next_max = max ^ array[x1] ^ array[x2] ^ array[x3] ^ array[x4]/* ^ array[x5] ^ array[x6]*/;
            if(next_max > max){
                max = next_max;
            }else{
                used[x1] = !used[x1];
                used[x2] = !used[x2];
                used[x3] = !used[x3];
                used[x4] = !used[x4];
                //used[x5] = !used[x5];
                //used[x6] = !used[x6];
            }
        }
        
        boolean first = true;
        for(int i = 0; i < N; i++){ 
            if(!used[i]){ continue; }
            
            System.out.print((first ? "" : " ") + (array[i]));
            first = false;
        }
        System.out.println();
    }
}
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