結果

問題 No.1142 XOR と XOR
ユーザー uwiuwi
提出日時 2020-07-31 21:38:29
言語 Java21
(openjdk 21)
結果
AC  
実行時間 125 ms / 2,000 ms
コード長 3,652 bytes
コンパイル時間 5,578 ms
コンパイル使用メモリ 79,680 KB
実行使用メモリ 53,048 KB
最終ジャッジ日時 2023-08-07 21:55:40
合計ジャッジ時間 9,227 ms
ジャッジサーバーID
(参考情報)
judge11 / judge15
このコードへのチャレンジ
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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 69 ms
51,304 KB
testcase_01 AC 66 ms
51,316 KB
testcase_02 AC 68 ms
51,320 KB
testcase_03 AC 112 ms
52,732 KB
testcase_04 AC 117 ms
52,324 KB
testcase_05 AC 111 ms
53,048 KB
testcase_06 AC 116 ms
52,664 KB
testcase_07 AC 116 ms
52,404 KB
testcase_08 AC 125 ms
52,544 KB
testcase_09 AC 112 ms
52,488 KB
testcase_10 AC 123 ms
52,604 KB
testcase_11 AC 68 ms
51,348 KB
testcase_12 AC 67 ms
51,312 KB
testcase_13 AC 68 ms
51,256 KB
testcase_14 AC 113 ms
52,240 KB
testcase_15 AC 94 ms
52,236 KB
testcase_16 AC 71 ms
51,388 KB
testcase_17 AC 96 ms
52,320 KB
testcase_18 AC 88 ms
52,072 KB
testcase_19 AC 115 ms
52,368 KB
testcase_20 AC 111 ms
52,504 KB
testcase_21 AC 108 ms
52,184 KB
testcase_22 AC 99 ms
52,416 KB
testcase_23 AC 115 ms
52,444 KB
testcase_24 AC 111 ms
52,764 KB
testcase_25 AC 108 ms
52,000 KB
testcase_26 AC 118 ms
52,684 KB
testcase_27 AC 109 ms
52,392 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 #

package contest200731;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.InputMismatchException;

public class D {
	InputStream is;
	PrintWriter out;
	String INPUT = "";
	
	int mod = 1000000007;
	
	void solve()
	{
		int n = ni(), m = ni(), K = ni();
		int[] a = na(n);
		int[] b = na(m);
		long[] fa = calc(a);
		long[] fb = calc(b);
		long ans = 0;
		for(int i = 0;i < fa.length;i++) {
			ans += fa[i] * fb[K^i];
			ans %= mod;
		}
		out.println(ans);
	}
	
	long[] calc(int[] a)
	{
		long[] f = new long[1024];
		int w = 0;
		f[0]++;
		for(int v : a) {
			w ^= v;
			f[w]++;
		}
		long[] ret = new long[1024];
		for(int i = 0;i < 1024;i++) {
			for(int j = 0;j < 1024;j++) {
				if(i != j)ret[i^j] += f[i] * f[j];
			}
			ret[0] += f[i] * (f[i] - 1);
		}
		for(int i = 0;i < 1024;i++)ret[i] = ret[i] / 2 % mod;
		return ret;
	}
	
	void run() throws Exception
	{
		is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
		out = new PrintWriter(System.out);
		
		long s = System.currentTimeMillis();
		solve();
		out.flush();
		if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");
//		Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){
//			@Override
//			public void run() {
//				long s = System.currentTimeMillis();
//				solve();
//				out.flush();
//				if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms");
//			}
//		};
//		t.start();
//		t.join();
	}
	
	public static void main(String[] args) throws Exception { new D().run(); }
	
	private byte[] inbuf = new byte[1024];
	public int lenbuf = 0, ptrbuf = 0;
	
	private int readByte()
	{
		if(lenbuf == -1)throw new InputMismatchException();
		if(ptrbuf >= lenbuf){
			ptrbuf = 0;
			try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); }
			if(lenbuf <= 0)return -1;
		}
		return inbuf[ptrbuf++];
	}
	
	private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); }
	private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; }
	
	private double nd() { return Double.parseDouble(ns()); }
	private char nc() { return (char)skip(); }
	
	private String ns()
	{
		int b = skip();
		StringBuilder sb = new StringBuilder();
		while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ')
			sb.appendCodePoint(b);
			b = readByte();
		}
		return sb.toString();
	}
	
	private char[] ns(int n)
	{
		char[] buf = new char[n];
		int b = skip(), p = 0;
		while(p < n && !(isSpaceChar(b))){
			buf[p++] = (char)b;
			b = readByte();
		}
		return n == p ? buf : Arrays.copyOf(buf, p);
	}
	
	private int[] na(int n)
	{
		int[] a = new int[n];
		for(int i = 0;i < n;i++)a[i] = ni();
		return a;
	}
	
	private long[] nal(int n)
	{
		long[] a = new long[n];
		for(int i = 0;i < n;i++)a[i] = nl();
		return a;
	}
	
	private char[][] nm(int n, int m) {
		char[][] map = new char[n][];
		for(int i = 0;i < n;i++)map[i] = ns(m);
		return map;
	}
	
	private int[][] nmi(int n, int m) {
		int[][] map = new int[n][];
		for(int i = 0;i < n;i++)map[i] = na(m);
		return map;
	}
	
	private int ni() { return (int)nl(); }
	
	private long nl()
	{
		long num = 0;
		int b;
		boolean minus = false;
		while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-'));
		if(b == '-'){
			minus = true;
			b = readByte();
		}
		
		while(true){
			if(b >= '0' && b <= '9'){
				num = num * 10 + (b - '0');
			}else{
				return minus ? -num : num;
			}
			b = readByte();
		}
	}
	
	private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); }
}
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