結果
| 問題 | No.1209 XOR Into You |
| ユーザー |
 mikit
|
| 提出日時 | 2020-08-30 16:05:42 |
| 言語 | Java21 (openjdk 21) |
| 結果 |
RE
|
| 実行時間 | - |
| コード長 | 11,910 bytes |
| コンパイル時間 | 2,861 ms |
| コンパイル使用メモリ | 99,884 KB |
| 実行使用メモリ | 50,520 KB |
| 最終ジャッジ日時 | 2024-04-27 09:44:27 |
| 合計ジャッジ時間 | 7,071 ms |
|
ジャッジサーバーID （参考情報） |
judge4 / judge1 |
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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 | RE | - |
| testcase_01 | RE | - |
| testcase_02 | RE | - |
| testcase_03 | RE | - |
| testcase_04 | RE | - |
| testcase_05 | RE | - |
| testcase_06 | RE | - |
| testcase_07 | RE | - |
| testcase_08 | RE | - |
| testcase_09 | RE | - |
| testcase_10 | RE | - |
| testcase_11 | RE | - |
| testcase_12 | RE | - |
| testcase_13 | RE | - |
| testcase_14 | RE | - |
| testcase_15 | RE | - |
| testcase_16 | RE | - |
| testcase_17 | RE | - |
| testcase_18 | RE | - |
| testcase_19 | RE | - |
| testcase_20 | RE | - |
| testcase_21 | RE | - |
| testcase_22 | RE | - |
| testcase_23 | RE | - |
| testcase_24 | RE | - |
| testcase_25 | RE | - |
| testcase_26 | RE | - |
| testcase_27 | RE | - |
| testcase_28 | RE | - |
| testcase_29 | RE | - |
| testcase_30 | RE | - |
| testcase_31 | RE | - |
| testcase_32 | RE | - |
| testcase_33 | RE | - |
| testcase_34 | RE | - |
| testcase_35 | RE | - |
| testcase_36 | RE | - |
| testcase_37 | RE | - |
| testcase_38 | RE | - |
| testcase_39 | RE | - |
| testcase_40 | RE | - |
ソースコード
import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.Arrays;
import java.util.function.LongBinaryOperator;
import java.util.HashMap;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.util.Map;
import java.util.NoSuchElementException;
import java.io.OutputStream;
import java.nio.CharBuffer;
import java.util.Collection;
import java.io.IOException;
import java.nio.charset.CharsetDecoder;
import java.lang.reflect.Field;
import java.nio.charset.StandardCharsets;
import java.io.UncheckedIOException;
import java.io.Writer;
import java.util.Queue;
import java.util.ArrayDeque;
import java.io.InputStream;
/**
* Built using CHelper reloaded plug-in
* Actual solution is at the top
*
* @author mikit
*/
public class Main {
public static void main(String[] args) {
InputStream inputStream = System.in;
OutputStream outputStream = System.out;
LightScanner2 in = new LightScanner2(inputStream);
LightWriter2 out = new LightWriter2(outputStream);
No1209XORIntoYou solver = new No1209XORIntoYou();
solver.solve(1, in, out);
out.close();
}
static class No1209XORIntoYou {
public void solve(int testNumber, LightScanner2 in, LightWriter2 out) {
int n = in.ints();
if (n == 3) throw new RuntimeException();
long[] as = in.longs(n), bs = in.longs(n), a = new long[n - 1], b = new long[n - 1];
for (int i = 0; i < n - 1; i++) {
a[i] = as[i] ^ as[i + 1];
b[i] = bs[i] ^ bs[i + 1];
}
Map<Long, Queue<Integer>> map = new HashMap<>();
for (int i = 0; i < n - 1; i++) {
if (!map.containsKey(b[i])) map.put(b[i], new ArrayDeque<>());
map.get(b[i]).offer(i);
}
int[] p = new int[n - 1];
for (int i = 0; i < n - 1; i++) {
Queue<Integer> q = map.get(a[i]);
if (q == null || q.isEmpty()) {
out.ans(-1).ln();
return;
}
p[i] = q.poll();
}
out.ans(InvNum.calcPerm(p)).ln();
}
}
static class LightScanner2 extends LightScannerAdapter {
private static final int BUF_SIZE = 32 * 1024;
private final InputStream stream;
private final StringBuilder builder = new StringBuilder();
private final byte[] buf = new byte[BUF_SIZE];
private int ptr;
private int len;
public LightScanner2(InputStream stream) {
this.stream = stream;
}
private int read() {
if (ptr < len) return buf[ptr++];
try {
ptr = 0;
len = stream.read(buf);
} catch (IOException ex) {
throw new UncheckedIOException(ex);
}
if (len == -1) return -1;
return buf[ptr++];
}
private void skip() {
int b;
while (isTokenSeparator(b = read()) && b != -1) ;
if (b == -1) throw new NoSuchElementException("EOF");
ptr--;
}
private void loadToken() {
builder.setLength(0);
skip();
for (int b = read(); !isTokenSeparator(b); b = read()) {
builder.appendCodePoint(b);
}
}
public String string() {
loadToken();
return builder.toString();
}
public int ints() {
long x = longs();
if (x < Integer.MIN_VALUE || Integer.MAX_VALUE < x) throw new NumberFormatException("Overflow");
return (int) x;
}
public long longs() {
skip();
int b = read();
boolean negate;
if (b == '-') {
negate = true;
b = read();
} else negate = false;
long x = 0;
for (; !isTokenSeparator(b); b = read()) {
if ('0' <= b && b <= '9') x = x * 10 + b - '0';
else throw new NumberFormatException("Unexpected character '" + b + "'");
}
return negate ? -x : x;
}
public void close() {
try {
stream.close();
} catch (IOException e) {
throw new UncheckedIOException(e);
}
}
private static boolean isTokenSeparator(int b) {
return b < 33 || 126 < b;
}
}
static class IntFenwickTree {
protected final int n;
private final long[] tree;
protected final LongBinaryOperator op;
protected final long zero;
public IntFenwickTree(int n, LongBinaryOperator op, long zero) {
this.n = n;
tree = new long[n + 1];
Arrays.fill(tree, zero);
this.op = op;
this.zero = zero;
}
public IntFenwickTree(long[] init, LongBinaryOperator op, long zero) {
this(init.length, op, zero);
for (int i = 0; i < n; i++) add(i, init[i]);
}
public void add(int index, long value) {
for (index++; index <= n; index += BitMath.extractLsb(index)) {
tree[index] = op.applyAsLong(tree[index], value);
}
}
public long query(int last) {
long res = zero;
for (; last > 0; last -= BitMath.extractLsb(last)) {
res = op.applyAsLong(res, tree[last]);
}
return res;
}
}
static class InvNum {
private InvNum() {
}
public static long calcPerm(int[] a) {
int n = a.length;
IntFenwickTree bit = new IntFenwickTree(n, Long::sum, 0L);
long ans = 0;
for (int i = n - 1; i >= 0; i--) {
ans += bit.query(a[i]);
bit.add(a[i], 1);
}
return ans;
}
}
static final class BitMath {
private BitMath() {
}
public static int extractLsb(int v) {
return v & (-v);
}
}
static class LightWriter2 implements AutoCloseable {
private static final int BUF_SIZE = 32 * 1024;
private static final int BUF_THRESHOLD = 1024;
private final OutputStream out;
private final byte[] buf = new byte[BUF_SIZE];
private int ptr;
private final Field fastStringAccess;
private boolean autoflush = false;
private boolean breaked = true;
public LightWriter2(OutputStream out) {
this.out = out;
Field f;
try {
f = String.class.getDeclaredField("value");
f.setAccessible(true);
if (f.getType() != byte[].class) f = null;
} catch (ReflectiveOperationException ignored) {
f = null;
}
this.fastStringAccess = f;
}
public LightWriter2(Writer out) {
this.out = new LightWriter2.WriterOutputStream(out);
this.fastStringAccess = null;
}
private void allocate(int n) {
if (ptr + n <= BUF_SIZE) return;
try {
out.write(buf, 0, ptr);
ptr = 0;
} catch (IOException ex) {
throw new UncheckedIOException(ex);
}
if (BUF_SIZE < n) throw new IllegalArgumentException("Internal buffer exceeded");
}
public void close() {
try {
out.write(buf, 0, ptr);
ptr = 0;
out.flush();
out.close();
} catch (IOException ex) {
throw new UncheckedIOException(ex);
}
}
public LightWriter2 print(char c) {
allocate(1);
buf[ptr++] = (byte) c;
breaked = false;
return this;
}
public LightWriter2 print(String s) {
byte[] bytes;
if (this.fastStringAccess == null) bytes = s.getBytes();
else {
try {
bytes = (byte[]) fastStringAccess.get(s);
} catch (IllegalAccessException ignored) {
bytes = s.getBytes();
}
}
int n = bytes.length;
if (n <= BUF_THRESHOLD) {
allocate(n);
System.arraycopy(bytes, 0, buf, ptr, n);
ptr += n;
return this;
}
try {
out.write(buf, 0, ptr);
ptr = 0;
out.write(bytes);
out.flush();
} catch (IOException ex) {
throw new UncheckedIOException(ex);
}
return this;
}
public LightWriter2 ans(long l) {
if (!breaked) {
print(' ');
}
if (l == 0) return print('0');
if (l < 0) {
print('-');
l = -l;
}
int n = 0;
long t = l;
while (t > 0) {
t /= 10;
n++;
}
allocate(n);
for (int i = 1; i <= n; i++) {
buf[ptr + n - i] = (byte) (l % 10 + '0');
l /= 10;
}
ptr += n;
return this;
}
public LightWriter2 ans(int i) {
if (!breaked) {
print(' ');
}
if (i == 0) return print('0');
if (i < 0) {
print('-');
i = -i;
}
int n = 0;
long t = i;
while (t > 0) {
t /= 10;
n++;
}
allocate(n);
for (int j = 1; j <= n; j++) {
buf[ptr + n - j] = (byte) (i % 10 + '0');
i /= 10;
}
ptr += n;
return this;
}
public LightWriter2 ln() {
print(System.lineSeparator());
breaked = true;
if (autoflush) {
try {
out.flush();
} catch (IOException ex) {
throw new UncheckedIOException(ex);
}
}
return this;
}
private static class WriterOutputStream extends OutputStream {
final Writer writer;
final CharsetDecoder decoder;
WriterOutputStream(Writer writer) {
this.writer = writer;
this.decoder = StandardCharsets.UTF_8.newDecoder();
}
public void write(int b) throws IOException {
writer.write(b);
}
public void write(byte[] b) throws IOException {
writer.write(decoder.decode(ByteBuffer.wrap(b)).array());
}
public void write(byte[] b, int off, int len) throws IOException {
writer.write(decoder.decode(ByteBuffer.wrap(b, off, len)).array());
}
public void flush() throws IOException {
writer.flush();
}
public void close() throws IOException {
writer.close();
}
}
}
static abstract class LightScannerAdapter implements AutoCloseable {
public abstract String string();
public long longs() {
return Long.parseLong(string());
}
public final long[] longs(int length) {
long[] res = new long[length];
Arrays.setAll(res, ignored -> longs());
return res;
}
public abstract void close();
}
}