結果

問題 No.1296 OR or NOR
ユーザー uwiuwi
提出日時 2020-11-20 23:41:19
言語 Java21
(openjdk 21)
結果
AC  
実行時間 1,756 ms / 3,000 ms
コード長 12,747 bytes
コンパイル時間 4,903 ms
コンパイル使用メモリ 92,652 KB
実行使用メモリ 82,368 KB
最終ジャッジ日時 2024-07-23 13:59:20
合計ジャッジ時間 22,845 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge4
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 70 ms
50,808 KB
testcase_01 AC 76 ms
50,864 KB
testcase_02 AC 362 ms
81,144 KB
testcase_03 AC 337 ms
82,368 KB
testcase_04 AC 494 ms
70,684 KB
testcase_05 AC 488 ms
78,924 KB
testcase_06 AC 391 ms
70,520 KB
testcase_07 AC 396 ms
70,836 KB
testcase_08 AC 369 ms
70,232 KB
testcase_09 AC 449 ms
70,008 KB
testcase_10 AC 448 ms
69,520 KB
testcase_11 AC 403 ms
70,900 KB
testcase_12 AC 437 ms
70,040 KB
testcase_13 AC 429 ms
69,432 KB
testcase_14 AC 1,756 ms
78,948 KB
testcase_15 AC 651 ms
80,056 KB
testcase_16 AC 717 ms
78,912 KB
testcase_17 AC 334 ms
79,148 KB
testcase_18 AC 330 ms
79,172 KB
testcase_19 AC 335 ms
79,172 KB
testcase_20 AC 208 ms
55,376 KB
testcase_21 AC 245 ms
54,972 KB
testcase_22 AC 185 ms
54,408 KB
testcase_23 AC 191 ms
54,240 KB
testcase_24 AC 228 ms
55,072 KB
testcase_25 AC 221 ms
54,908 KB
testcase_26 AC 203 ms
54,780 KB
testcase_27 AC 203 ms
54,976 KB
testcase_28 AC 273 ms
55,384 KB
testcase_29 AC 222 ms
54,536 KB
testcase_30 AC 679 ms
79,392 KB
testcase_31 AC 681 ms
79,200 KB
testcase_32 AC 698 ms
80,112 KB
testcase_33 AC 315 ms
79,500 KB
testcase_34 AC 300 ms
69,768 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 contest201120;

import java.io.*;
import java.util.ArrayDeque;
import java.util.Arrays;
import java.util.InputMismatchException;
import java.util.Queue;

public class F4 {
	InputStream is;
	FastWriter out;

	String INPUT = "";

	public void solve()
	{
		int n = ni();
		long[] a = nal(n);
		final int D = 60;

//		int[][] lsts = new int[D][n];
		long[] m1 = new long[n];
		long t = (1L<<D)-1;
		for(int i = 0;i < n;i++){
			t &= ~a[i];
			m1[i] = t;
		}
//		for(int i = 0;i < D;i++){
//			lsts[i][0] = a[0]<<~i<0 ? 0 : -1;
//			for(int j = 1;j < n;j++){
//				lsts[i][j] = a[j]<<~i<0 ? j : lsts[i][j-1];
//			}
//		}

		long[][] st = build(a);

		outer:
		for(int Q = ni();Q > 0;Q--){
			long x = nl();
			int pos = n-1;
			long h = x;
			long alive = (1L<<D)-1;
//			tr("query", x);

			int nflip = 0;

			while(pos >= 0) {
				int last0 = -1;
				{
					long tar = alive & ~h;
					int low = -1, high = pos+1;
					while(high - low > 1){
						int u = high+low>>1;
						if((rmq(st, u, pos+1)&tar) != 0){
							low = u;
						}else{
							high = u;
						}
					}
					last0 = low;
				}
//				{
//					long tar = alive & ~h & ~m1[pos];
//					for (int i = 0; i < D; i++) {
//						if (tar << ~i < 0) {
//							int last = lsts[i][pos];
//							last0 = Math.max(last0, last);
//						}
//					}
//				}

				if((m1[pos]&h&alive) != 0) {
					last0 = Math.max(last0, 0);
				}

				if (last0 != -1) {
					if(last0 == pos && ((h&alive)&a[pos]) != 0){
						out.println(-1);
						continue outer;
					}
					{
						long hit = rmq(st, last0+1, pos+1);
						alive &= ~(h&hit);
					}
					h = ~h & (1L<<D)-1;
					nflip++;
					pos = last0;
//					tr(pos, last0, h);
					if((a[pos]&(~h&alive)) != 0){
						out.println(-1);
						continue outer;
					}
					alive &= ~a[pos];
					pos--;
//					tr(h);
				}else{
					alive &= m1[pos];
					break;
				}
			}
			if((h&alive) != 0){
				out.println(-1);
				continue outer;
			}

			out.println(nflip);
		}
	}

	public static long[][] build(long[] a)
	{
		int n = a.length;
		int b = 32-Integer.numberOfLeadingZeros(n);
		long[][] ret = new long[b][];
		for(int i = 0, l = 1;i < b;i++, l*=2) {
			if(i == 0) {
				ret[i] = a;
			}else {
				ret[i] = new long[n-l+1];
				for(int j = 0;j < n-l+1;j++) {
					ret[i][j] = ret[i-1][j]|ret[i-1][j+l/2];
				}
			}
		}
		return ret;
	}

	// [a,b)
	public static long rmq(long[][] or, int l, int r)
	{
		assert l <= r;
		if(l >= r)return 0L;
		// 1:0, 2:1, 3:1, 4:2, 5:2, 6:2, 7:2, 8:3
		int t = 31-Integer.numberOfLeadingZeros(r-l);
		return or[t][l]|or[t][r-(1<<t)];
	}


	public static void main(String[] args) {
		new F4().run();
	}

	public void run()
	{
		long S = System.currentTimeMillis();
		is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
		out = new FastWriter(System.out);

		solve();
		out.flush();
		long G = System.currentTimeMillis();
		tr(G-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();
	}

	private boolean eof()
	{
		if(lenbuf == -1)return true;
		int lptr = ptrbuf;
		while(lptr < lenbuf)if(!isSpaceChar(inbuf[lptr++]))return false;

		try {
			is.mark(1000);
			while(true){
				int b = is.read();
				if(b == -1){
					is.reset();
					return true;
				}else if(!isSpaceChar(b)){
					is.reset();
					return false;
				}
			}
		} catch (IOException e) {
			return true;
		}
	}

	private final 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 boolean isSpaceChar(int c) { return !(c >= 32 && 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))){
			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 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[] 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 int ni()
	{
		int num = 0, 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 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();
		}
	}

	public static class FastWriter
	{
		private static final int BUF_SIZE = 1<<13;
		private final byte[] buf = new byte[BUF_SIZE];
		private final OutputStream out;
		private int ptr = 0;

		private FastWriter(){out = null;}

		public FastWriter(OutputStream os)
		{
			this.out = os;
		}

		public FastWriter(String path)
		{
			try {
				this.out = new FileOutputStream(path);
			} catch (FileNotFoundException e) {
				throw new RuntimeException("FastWriter");
			}
		}

		public FastWriter write(byte b)
		{
			buf[ptr++] = b;
			if(ptr == BUF_SIZE)innerflush();
			return this;
		}

		public FastWriter write(char c)
		{
			return write((byte)c);
		}

		public FastWriter write(char[] s)
		{
			for(char c : s){
				buf[ptr++] = (byte)c;
				if(ptr == BUF_SIZE)innerflush();
			}
			return this;
		}

		public FastWriter write(String s)
		{
			s.chars().forEach(c -> {
				buf[ptr++] = (byte)c;
				if(ptr == BUF_SIZE)innerflush();
			});
			return this;
		}

		private static int countDigits(int l) {
			if (l >= 1000000000) return 10;
			if (l >= 100000000) return 9;
			if (l >= 10000000) return 8;
			if (l >= 1000000) return 7;
			if (l >= 100000) return 6;
			if (l >= 10000) return 5;
			if (l >= 1000) return 4;
			if (l >= 100) return 3;
			if (l >= 10) return 2;
			return 1;
		}

		public FastWriter write(int x)
		{
			if(x == Integer.MIN_VALUE){
				return write((long)x);
			}
			if(ptr + 12 >= BUF_SIZE)innerflush();
			if(x < 0){
				write((byte)'-');
				x = -x;
			}
			int d = countDigits(x);
			for(int i = ptr + d - 1;i >= ptr;i--){
				buf[i] = (byte)('0'+x%10);
				x /= 10;
			}
			ptr += d;
			return this;
		}

		private static int countDigits(long l) {
			if (l >= 1000000000000000000L) return 19;
			if (l >= 100000000000000000L) return 18;
			if (l >= 10000000000000000L) return 17;
			if (l >= 1000000000000000L) return 16;
			if (l >= 100000000000000L) return 15;
			if (l >= 10000000000000L) return 14;
			if (l >= 1000000000000L) return 13;
			if (l >= 100000000000L) return 12;
			if (l >= 10000000000L) return 11;
			if (l >= 1000000000L) return 10;
			if (l >= 100000000L) return 9;
			if (l >= 10000000L) return 8;
			if (l >= 1000000L) return 7;
			if (l >= 100000L) return 6;
			if (l >= 10000L) return 5;
			if (l >= 1000L) return 4;
			if (l >= 100L) return 3;
			if (l >= 10L) return 2;
			return 1;
		}

		public FastWriter write(long x)
		{
			if(x == Long.MIN_VALUE){
				return write("" + x);
			}
			if(ptr + 21 >= BUF_SIZE)innerflush();
			if(x < 0){
				write((byte)'-');
				x = -x;
			}
			int d = countDigits(x);
			for(int i = ptr + d - 1;i >= ptr;i--){
				buf[i] = (byte)('0'+x%10);
				x /= 10;
			}
			ptr += d;
			return this;
		}

		public FastWriter write(double x, int precision)
		{
			if(x < 0){
				write('-');
				x = -x;
			}
			x += Math.pow(10, -precision)/2;
			//		if(x < 0){ x = 0; }
			write((long)x).write(".");
			x -= (long)x;
			for(int i = 0;i < precision;i++){
				x *= 10;
				write((char)('0'+(int)x));
				x -= (int)x;
			}
			return this;
		}

		public FastWriter writeln(char c){
			return write(c).writeln();
		}

		public FastWriter writeln(int x){
			return write(x).writeln();
		}

		public FastWriter writeln(long x){
			return write(x).writeln();
		}

		public FastWriter writeln(double x, int precision){
			return write(x, precision).writeln();
		}

		public FastWriter write(int... xs)
		{
			boolean first = true;
			for(int x : xs) {
				if (!first) write(' ');
				first = false;
				write(x);
			}
			return this;
		}

		public FastWriter write(long... xs)
		{
			boolean first = true;
			for(long x : xs) {
				if (!first) write(' ');
				first = false;
				write(x);
			}
			return this;
		}

		public FastWriter writeln()
		{
			return write((byte)'\n');
		}

		public FastWriter writeln(int... xs)
		{
			return write(xs).writeln();
		}

		public FastWriter writeln(long... xs)
		{
			return write(xs).writeln();
		}

		public FastWriter writeln(char[] line)
		{
			return write(line).writeln();
		}

		public FastWriter writeln(char[]... map)
		{
			for(char[] line : map)write(line).writeln();
			return this;
		}

		public FastWriter writeln(String s)
		{
			return write(s).writeln();
		}

		private void innerflush()
		{
			try {
				out.write(buf, 0, ptr);
				ptr = 0;
			} catch (IOException e) {
				throw new RuntimeException("innerflush");
			}
		}

		public void flush()
		{
			innerflush();
			try {
				out.flush();
			} catch (IOException e) {
				throw new RuntimeException("flush");
			}
		}

		public FastWriter print(byte b) { return write(b); }
		public FastWriter print(char c) { return write(c); }
		public FastWriter print(char[] s) { return write(s); }
		public FastWriter print(String s) { return write(s); }
		public FastWriter print(int x) { return write(x); }
		public FastWriter print(long x) { return write(x); }
		public FastWriter print(double x, int precision) { return write(x, precision); }
		public FastWriter println(char c){ return writeln(c); }
		public FastWriter println(int x){ return writeln(x); }
		public FastWriter println(long x){ return writeln(x); }
		public FastWriter println(double x, int precision){ return writeln(x, precision); }
		public FastWriter print(int... xs) { return write(xs); }
		public FastWriter print(long... xs) { return write(xs); }
		public FastWriter println(int... xs) { return writeln(xs); }
		public FastWriter println(long... xs) { return writeln(xs); }
		public FastWriter println(char[] line) { return writeln(line); }
		public FastWriter println(char[]... map) { return writeln(map); }
		public FastWriter println(String s) { return writeln(s); }
		public FastWriter println() { return writeln(); }
	}

	public static void trnz(int... o)
	{
		for(int i = 0;i < o.length;i++)if(o[i] != 0)System.out.print(i+":"+o[i]+" ");
		System.out.println();
	}

	// print ids which are 1
	public static void trt(long... o)
	{
		Queue<Integer> stands = new ArrayDeque<>();
		for(int i = 0;i < o.length;i++){
			for(long x = o[i];x != 0;x &= x-1)stands.add(i<<6|Long.numberOfTrailingZeros(x));
		}
		System.out.println(stands);
	}

	public static void tf(boolean... r)
	{
		for(boolean x : r)System.out.print(x?'#':'.');
		System.out.println();
	}

	public static void tf(boolean[]... b)
	{
		for(boolean[] r : b) {
			for(boolean x : r)System.out.print(x?'#':'.');
			System.out.println();
		}
		System.out.println();
	}

	public void tf(long[]... b)
	{
		if(INPUT.length() != 0) {
			for (long[] r : b) {
				for (long x : r) {
					for (int i = 0; i < 64; i++) {
						System.out.print(x << ~i < 0 ? '#' : '.');
					}
				}
				System.out.println();
			}
			System.out.println();
		}
	}

	public void tf(long... b)
	{
		if(INPUT.length() != 0) {
			for (long x : b) {
				for (int i = 0; i < 64; i++) {
					System.out.print(x << ~i < 0 ? '#' : '.');
				}
			}
			System.out.println();
		}
	}

	private void tr(Object... o) { if(INPUT.length() != 0)System.out.println(Arrays.deepToString(o)); }
}
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