結果

問題 No.2319 Friends+
ユーザー viral8viral8
提出日時 2023-05-27 15:30:08
言語 Java21
(openjdk 21)
結果
AC  
実行時間 906 ms / 3,000 ms
コード長 9,546 bytes
コンパイル時間 2,699 ms
コンパイル使用メモリ 89,516 KB
実行使用メモリ 210,940 KB
最終ジャッジ日時 2024-06-07 17:07:58
合計ジャッジ時間 34,795 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge5
このコードへのチャレンジ
（要ログイン）

テストケース

テストケース表示
入力 結果 実行時間
実行使用メモリ
testcase_00 AC 55 ms
36,724 KB
testcase_01 AC 56 ms
37,468 KB
testcase_02 AC 655 ms
188,516 KB
testcase_03 AC 613 ms
197,556 KB
testcase_04 AC 662 ms
197,720 KB
testcase_05 AC 666 ms
197,928 KB
testcase_06 AC 791 ms
199,784 KB
testcase_07 AC 862 ms
199,332 KB
testcase_08 AC 885 ms
188,288 KB
testcase_09 AC 906 ms
198,232 KB
testcase_10 AC 882 ms
199,192 KB
testcase_11 AC 833 ms
199,608 KB
testcase_12 AC 59 ms
37,188 KB
testcase_13 AC 65 ms
37,068 KB
testcase_14 AC 59 ms
37,088 KB
testcase_15 AC 59 ms
37,240 KB
testcase_16 AC 58 ms
37,112 KB
testcase_17 AC 54 ms
36,944 KB
testcase_18 AC 645 ms
198,136 KB
testcase_19 AC 770 ms
198,348 KB
testcase_20 AC 663 ms
200,132 KB
testcase_21 AC 664 ms
201,920 KB
testcase_22 AC 667 ms
198,560 KB
testcase_23 AC 808 ms
210,780 KB
testcase_24 AC 680 ms
199,888 KB
testcase_25 AC 700 ms
199,852 KB
testcase_26 AC 680 ms
198,380 KB
testcase_27 AC 732 ms
210,940 KB
testcase_28 AC 670 ms
200,152 KB
testcase_29 AC 670 ms
198,736 KB
testcase_30 AC 663 ms
199,868 KB
testcase_31 AC 655 ms
198,552 KB
testcase_32 AC 661 ms
200,036 KB
testcase_33 AC 711 ms
198,496 KB
testcase_34 AC 662 ms
199,864 KB
testcase_35 AC 657 ms
198,464 KB
testcase_36 AC 803 ms
210,488 KB
testcase_37 AC 575 ms
199,024 KB
testcase_38 AC 543 ms
197,528 KB
testcase_39 AC 541 ms
198,656 KB
testcase_40 AC 544 ms
191,044 KB
testcase_41 AC 547 ms
198,860 KB
testcase_42 AC 524 ms
197,596 KB
testcase_43 AC 538 ms
197,388 KB
testcase_44 AC 598 ms
209,600 KB
testcase_45 AC 599 ms
199,624 KB
testcase_46 AC 610 ms
199,664 KB
権限があれば一括ダウンロードができます

ソースコード

diff # 

import java.io.InputStream;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.io.IOException;
import java.math.BigInteger;
import java.awt.Point;
import java.awt.Dimension;
import java.util.*;
import java.util.stream.*;
import java.util.function.*;

public final class Main {

	private static final boolean autoFlush = false;
	private static final SimpleScanner sc = new SimpleScanner( System.in );
	private static final SimplePrinter out = new SimplePrinter( System.out, autoFlush );

	public static void main ( String[] args ) {

		int N = sc.nextInt();
		int M = sc.nextInt();
		BitSet[] world = new BitSet[N+1];
		for(int i=1;i<=N;i++)
			world[i] = new BitSet(N+1);
		int[] P = new int[N+1];
		for(int i=1;i<=N;i++)
			world[P[i]=sc.nextInt()].set(i);
		BitSet[] friend = new BitSet[N+1];
		for(int i=1;i<=N;i++)
			friend[i] = new BitSet(N+1);
		while(M-->0){
			int A = sc.nextInt();
			int B = sc.nextInt();
			friend[A].set(B);
			friend[B].set(A);
		}
		int Q = sc.nextInt();
		while(Q-->0){
			int X = sc.nextInt();
			int Y = sc.nextInt();
			BitSet set = (BitSet)friend[X].clone();
			set.and(world[P[Y]]);
			if(P[X]!=P[Y]&&set.cardinality()>0){
				world[P[X]].clear(X);
				world[P[Y]].set(X);
				P[X] = P[Y];
				out.println("Yes");
			}
			else
				out.println("No");
		}

		out.close();
	}
}
/*


             ／￣＼
            |     |
             ＼＿／
               |
          ／ ￣  ￣  ＼
        ／    ＼  ／    ＼
     ／      ⌒    ⌒      ＼      よくぞこの提出結果を開いてくれた
     |      （__人__）      |      褒美としてオプーナを買う権利をやる
     ＼       ｀⌒´       ／   ☆
      /ヽ､--ー､＿＿, -‐ ´  ＼─／
    ／ >     ヽ▼●▼<＼       ||ｰ､.
   /ヽ､    ＼ i |｡| |/  ヽ (ニ､`ヽ.
  l    ヽ     l |｡| | r-､y ｀ﾆ  ﾉ ＼
  l     |     |ー─ | ￣ l   ｀~ヽ＿ノ＿_
      ／￣￣￣￣ヽ-'ヽ--'  ／ オープナ  ／|
     |￣￣￣￣￣￣|／|    |￣￣￣￣￣￣|／| ＿＿＿＿＿＿
 ／￣オプーナ／|￣|__｣／_オープナ ／|￣|__,」＿_      ／|
|￣￣￣￣￣|／オープナ￣／￣￣￣￣|／オプーナ ／|   ／  |
|￣￣￣￣￣|￣￣￣￣￣|／l￣￣￣￣|￣￣￣￣￣|／| ／
|￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣￣|
*/

/*////////////////////////////////////////////////
	* My Library *

	@author viral
*/////////////////////////////////////////////////
// MyScanner
final class SimpleScanner {
	final private int buff_size = 1 << 12;
	private final InputStream is;
	private final byte[] buff;
	private int point, length;

	public SimpleScanner ( InputStream is ) {
		this.is = is;
		buff = new byte[buff_size];
		point = length = 0;
	}

	private void reload () {
		do {
			try {
				length = is.read( buff, point = 0, buff_size );
			} catch ( IOException e ) {
				e.printStackTrace();
				System.exit( 1 );
			}
		} while ( length == -1 );
	}

	private byte read () {
		if ( point == length ) {
			reload();
		}
		return buff[point++];
	}

	public byte nextByte () {
		byte c = read();
		while ( c <= ' ' ) {
			c = read();
		}
		return c;
	}

	public int nextInt () {
		int ans = 0;
		byte c = read();
		while ( c <= ' ' ) {
			c = read();
		}
		boolean negate = c == '-';
		if ( c == '-' ) {
			c = read();
		}
		while ( '0' <= c && c <= '9' ) {
			ans = ans * 10 + c - '0';
			c = read();
		}
		return negate ? -ans : ans;
	}

	public long nextLong () {
		long ans = 0;
		byte c = read();
		while ( c <= ' ' ) {
			c = read();
		}
		boolean negate = c == '-';
		if ( c == '-' ) {
			c = read();
		}
		while ( '0' <= c && c <= '9' ) {
			ans = ans * 10 + c - '0';
			c = read();
		}
		return negate ? -ans : ans;
	}

	public char nextChar () {
		byte c = read();
		while ( c <= ' ' ) {
			c = read();
		}
		return ( char )c;
	}

	public String next () {
		StringBuilder ans = new StringBuilder();
		byte c = read();
		while ( c <= ' ' ) {
			c = read();
		}
		while ( c > ' ' ) {
			ans.append( ( char )c );
			c = read();
		}
		return ans.toString();
	}

	public byte[] nextByte ( int n ) {
		byte[] ans = new byte[n];
		for ( int i = 0; i < n; ++i ) {
			ans[i] = nextByte();
		}
		return ans;
	}

	public int[] nextInt ( int n ) {
		int[] ans = new int[n];
		for ( int i = 0; i < n; ++i ) {
			ans[i] = nextInt();
		}
		return ans;
	}

	public long[] nextLong ( int n ) {
		long[] ans = new long[n];
		for ( int i = 0; i < n; ++i ) {
			ans[i] = nextLong();
		}
		return ans;
	}

	public String[] next ( int n ) {
		String[] ans = new String[n];
		for ( int i = 0; i < n; ++i ) {
			ans[i] = next();
		}
		return ans;
	}

	public byte[][] nextByte ( int n, int m ) {
		byte[][] ans = new byte[n][];
		for ( int i = 0; i < n; ++i ) {
			ans[i] = nextByte( m );
		}
		return ans;
	}

	public int[][] nextInt ( int n, int m ) {
		int[][] ans = new int[n][];
		for ( int i = 0; i < n; ++i ) {
			ans[i] = nextInt( m );
		}
		return ans;
	}

	public long[][] nextLong ( int n, int m ) {
		long[][] ans = new long[n][];
		for ( int i = 0; i < n; ++i ) {
			ans[i] = nextLong( m );
		}
		return ans;
	}

	public String[][] next ( int n, int m ) {
		String[][] ans = new String[n][];
		for ( int i = 0; i < n; ++i ) {
			ans[i] = next( m );
		}
		return ans;
	}

	public char[] nextCharArray () {
		return next().toCharArray();
	}

	public char[][] nextCharArray ( int n ) {
		char[][] ans = new char[n][];
		for ( int i = 0; i < n; ++i ) {
			ans[i] = nextCharArray();
		}
		return ans;
	}

	public int[][] nextGraph ( int N, int M ) {
		if ( M == 0 ) {
			return new int[N + 1][0];
		}
		int[][] ans = new int[N + 1][];
		int[] count = new int[N + 1];
		int[][] path = nextInt( M, 2 );
		for ( int[] temp: path ) {
			++count[temp[0]];
			++count[temp[1]];
		}
		for ( int i = 1; i <= N; ++i ) {
			ans[i] = new int[count[i]];
		}
		for ( int[] temp: path ) {
			ans[temp[0]][--count[temp[0]]] = temp[1];
			ans[temp[1]][--count[temp[1]]] = temp[0];
		}
		ans[0] = new int[0];
		return ans;
	}

	public Point nextPoint () {
		return new Point( nextInt(), nextInt() );
	}

	public Point[] nextPoint ( int n ) {
		Point[] ans = new Point[n];
		for ( int i = 0; i < n; ++i ) {
			ans[i] = nextPoint();
		}
		return ans;
	}

	public void close () {
		try {
			is.close();
		} catch ( IOException e ) {
			e.printStackTrace();
			System.exit( 1 );
		}
	}
}

// MyPrinter
final class SimplePrinter extends PrintWriter {
	public SimplePrinter ( PrintStream os ) {
		super( os );
	}

	public SimplePrinter ( PrintStream os, boolean bool ) {
		super( os, bool );
	}

	public void println ( int[] array ) {
		println( array, ' ' );
	}

	public void println ( int[] array, String str ) {
		print( array[0] );
		for ( int i = 1; i < array.length; ++i ) {
			print( str );
			print( array[i] );
		}
		println();
	}

	public void println ( int[] array, char c ) {
		print( array[0] );
		for ( int i = 1; i < array.length; ++i ) {
			print( c );
			print( array[i] );
		}
		println();
	}

	public void println ( int[][] array ) {
		println( array, ' ' );
	}

	public void println ( int[][] arrays, String str ) {
		for ( int[] array: arrays ) {
			println( array, str );
		}
	}

	public void println ( int[][] arrays, char c ) {
		for ( int[] array: arrays ) {
			println( array, c );
		}
	}

	public void println ( long[] array ) {
		println( array, ' ' );
	}

	public void println ( long[] array, String str ) {
		print( array[0] );
		for ( int i = 1; i < array.length; ++i ) {
			print( str );
			print( array[i] );
		}
		println();
	}

	public void println ( long[] array, char c ) {
		print( array[0] );
		for ( int i = 1; i < array.length; ++i ) {
			print( c );
			print( array[i] );
		}
		println();
	}

	public void println ( long[][] array ) {
		println( array, ' ' );
	}

	public void println ( long[][] arrays, String str ) {
		for ( long[] array: arrays ) {
			println( array, str );
		}
	}

	public void println ( long[][] arrays, char c ) {
		for ( long[] array: arrays ) {
			println( array, c );
		}
	}

	public void println ( char[] cs, String str ) {
		print( cs[0] );
		for ( int i = 1; i < cs.length; ++i ) {
			print( str );
			print( cs[i] );
		}
		println();
	}

	public void println ( char[] cs, char c ) {
		print( cs[0] );
		for ( int i = 1; i < cs.length; ++i ) {
			print( c );
			print( cs[i] );
		}
		println();
	}

	public void println ( char[][] cs ) {
		for ( char[] c: cs ) {
			println( c );
		}
	}

	public void println ( char[][] cs, String str ) {
		print( cs[0] );
		for ( int i = 1; i < cs.length; ++i ) {
			print( str );
			print( cs[i] );
		}
		println();
	}

	public void println ( char[][] cs, char c ) {
		print( cs[0] );
		for ( int i = 1; i < cs.length; ++i ) {
			print( c );
			print( cs[i] );
		}
		println();
	}

	public <E> void println ( E[] array ) {
		println( array, ' ' );
	}

	public <E> void println ( E[] array, String str ) {
		print( array[0] );
		for ( int i = 1; i < array.length; ++i ) {
			print( str );
			print( array[i] );
		}
		println();
	}

	public <E> void println ( E[] array, char c ) {
		print( array[0] );
		for ( int i = 1; i < array.length; ++i ) {
			print( c );
			print( array[i] );
		}
		println();
	}

	public <E> void println ( E[][] arrays ) {
		println( arrays, ' ' );
	}

	public <E> void println ( E[][] arrays, String str ) {
		for ( E[] array: arrays ) {
			println( array, str );
		}
	}

	public <E> void println ( E[][] arrays, char c ) {
		for ( E[] array: arrays ) {
			println( array, c );
		}
	}
}
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