結果
| 問題 |
No.2837 Flip Triomino
|
| コンテスト | |
| ユーザー |
 Yu_212
|
| 提出日時 | 2024-08-09 21:59:41 |
| 言語 | Java (openjdk 23) |
| 結果 |
WA
|
| 実行時間 | - |
| コード長 | 11,293 bytes |
| コンパイル時間 | 3,068 ms |
| コンパイル使用メモリ | 99,108 KB |
| 実行使用メモリ | 70,408 KB |
| 最終ジャッジ日時 | 2024-08-09 21:59:49 |
| 合計ジャッジ時間 | 7,166 ms |
|
ジャッジサーバーID （参考情報） |
judge5 / judge3 |
（要ログイン）
| ファイルパターン | 結果 |
|---|---|
| sample | AC * 3 |
| other | AC * 3 WA * 1 TLE * 1 -- * 29 |
ソースコード
import java.io.BufferedInputStream;
import java.io.IOException;
import java.io.PrintWriter;
import java.math.BigInteger;
import java.util.*;
import java.util.function.IntUnaryOperator;
import java.util.function.LongUnaryOperator;
import java.util.stream.Collectors;
import java.util.stream.IntStream;
public class Main {
static In in = new In();
static Out out = new Out(false, false);
static final long inf = 0x1fffffffffffffffL;
static final int iinf = 0x3fffffff;
static final double eps = 1e-9;
static long mod = 998244353;
void solve() {
int h = in.nextInt();
int w = in.nextInt();
char[][] s = in.nextCharMatrix(h, w);
int qc = 0;
for (int i = 0; i < h; i++) {
for (int j = 0; j < w; j++) {
if (s[i][j] == '?') {
qc++;
}
}
}
List<BigInteger> bases = new ArrayList<>();
for (int i = 0; i < h; i++) {
for (int j = 0; j < w; j++) {
BigInteger a = BigInteger.ONE.shiftLeft(i * w + j);
BigInteger b = BigInteger.ONE.shiftLeft(i * w + j+1);
BigInteger c = BigInteger.ONE.shiftLeft(i * w + j+2);
BigInteger d = BigInteger.ONE.shiftLeft((i+1) * w + j);
BigInteger e = BigInteger.ONE.shiftLeft((i+1) * w + j+1);
BigInteger f = BigInteger.ONE.shiftLeft((i+2) * w + j);
if (i + 2 < h) add(bases, a.add(d).add(f));
if (j + 2 < w) add(bases, a.add(b).add(c));
if (i + 1 < h && j + 1 < w) add(bases, a.add(b).add(e));
if (i + 1 < h && j + 1 < w) add(bases, a.add(d).add(e));
}
}
Collections.sort(bases);
if (qc <= 3) {
long ans = 0;
for (int i = 0; i < 1 << qc; i++) {
BigInteger v = BigInteger.ZERO;
int c = 0;
for (int j = 0; j < h; j++) {
for (int k = 0; k < w; k++) {
BigInteger a = BigInteger.ONE.shiftLeft(j * w + k);
if (s[j][k] == '?') {
if ((i >> c & 1) == 1) {
v = v.add(a);
}
c++;
} else if (s[j][k] == 'B') {
v = v.add(a);
}
}
}
if (!add(bases, v)) {
ans++;
bases.remove(bases.size() - 1);
}
}
out.println(ans);
} else {
out.println(pow(2, qc - 2, mod));
}
}
public long pow(long a, long b, long mod) {
long x = 1;
while (b > 0) {
if ((b & 1) == 1) {
x = x * a % mod;
}
a = a * a % mod;
b >>= 1;
}
return x;
}
boolean add(List<BigInteger> bases, BigInteger v) {
for (BigInteger b : bases) {
BigInteger c = b.xor(v);
if (v.compareTo(c) > 0) {
v = c;
}
}
if (!v.equals(BigInteger.ZERO)) {
bases.add(v);
return true;
} else {
return false;
}
}
public static void main(String... args) {
new Main().solve();
out.flush();
}
}
class In {
private final BufferedInputStream reader = new BufferedInputStream(System.in);
private final byte[] buffer = new byte[0x10000];
private int i = 0;
private int length = 0;
public int read() {
if (i == length) {
i = 0;
try {
length = reader.read(buffer);
} catch (IOException ignored) {
}
if (length == -1) {
return 0;
}
}
if (length <= i) {
throw new RuntimeException();
}
return buffer[i++];
}
public String next() {
StringBuilder builder = new StringBuilder();
int b = read();
while (b < '!' || '~' < b) {
b = read();
}
while ('!' <= b && b <= '~') {
builder.appendCodePoint(b);
b = read();
}
return builder.toString();
}
public String nextLine() {
StringBuilder builder = new StringBuilder();
int b = read();
while (b != 0 && b != '\r' && b != '\n') {
builder.appendCodePoint(b);
b = read();
}
if (b == '\r') {
read();
}
return builder.toString();
}
public int nextInt() {
long val = nextLong();
if (val < Integer.MIN_VALUE || Integer.MAX_VALUE < val) {
throw new NumberFormatException();
}
return (int)val;
}
public long nextLong() {
int b = read();
while (b < '!' || '~' < b) {
b = read();
}
boolean neg = false;
if (b == '-') {
neg = true;
b = read();
}
long n = 0;
int c = 0;
while ('0' <= b && b <= '9') {
n = n * 10 + b - '0';
b = read();
c++;
}
if (c == 0 || c >= 2 && n == 0) {
throw new NumberFormatException();
}
return neg ? -n : n;
}
public double nextDouble() {
return Double.parseDouble(next());
}
public char[] nextCharArray() {
return next().toCharArray();
}
public String[] nextStringArray(int n) {
String[] s = new String[n];
for (int i = 0; i < n; i++) {
s[i] = next();
}
return s;
}
public char[][] nextCharMatrix(int n, int m) {
char[][] a = new char[n][m];
for (int i = 0; i < n; i++) {
a[i] = next().toCharArray();
}
return a;
}
public int[] nextIntArray(int n) {
int[] a = new int[n];
for (int i = 0; i < n; i++) {
a[i] = nextInt();
}
return a;
}
public int[] nextIntArray(int n, IntUnaryOperator op) {
int[] a = new int[n];
for (int i = 0; i < n; i++) {
a[i] = op.applyAsInt(nextInt());
}
return a;
}
public int[][] nextIntMatrix(int h, int w) {
int[][] a = new int[h][w];
for (int i = 0; i < h; i++) {
a[i] = nextIntArray(w);
}
return a;
}
public long[] nextLongArray(int n) {
long[] a = new long[n];
for (int i = 0; i < n; i++) {
a[i] = nextLong();
}
return a;
}
public long[] nextLongArray(int n, LongUnaryOperator op) {
long[] a = new long[n];
for (int i = 0; i < n; i++) {
a[i] = op.applyAsLong(nextLong());
}
return a;
}
public long[][] nextLongMatrix(int h, int w) {
long[][] a = new long[h][w];
for (int i = 0; i < h; i++) {
a[i] = nextLongArray(w);
}
return a;
}
public List<List<Integer>> nextGraph(int n, int m, boolean directed) {
List<List<Integer>> res = new ArrayList<>();
for (int i = 0; i < n; i++) {
res.add(new ArrayList<>());
}
for (int i = 0; i < m; i++) {
int u = nextInt() - 1;
int v = nextInt() - 1;
res.get(u).add(v);
if (!directed) {
res.get(v).add(u);
}
}
return res;
}
}
class Out {
private final PrintWriter out = new PrintWriter(System.out);
private final PrintWriter err = new PrintWriter(System.err);
public boolean autoFlush;
public boolean enableDebug;
public Out(boolean autoFlush, boolean enableDebug) {
this.autoFlush = autoFlush;
this.enableDebug = enableDebug;
}
public void debug(Object... args) {
if (!enableDebug) {
return;
}
if (args == null || args.getClass() != Object[].class) {
args = new Object[] {args};
}
err.println(Arrays.stream(args).map(obj -> format(obj, true)).collect(Collectors.joining(" ")));
err.flush();
}
private String format(Object obj, boolean canMultiline) {
if (obj == null) return "null";
Class<?> clazz = obj.getClass();
if (clazz == Double.class) return String.format("%.10f", obj);
if (clazz == int[].class) return Arrays.toString((int[])obj);
if (clazz == long[].class) return Arrays.toString((long[])obj);
if (clazz == char[].class) return String.valueOf((char[])obj);
if (clazz == boolean[].class) return IntStream.range(0, ((boolean[])obj).length).mapToObj(i -> ((boolean[])obj)[i] ? "1" : "0").collect(Collectors.joining());
if (clazz == double[].class) return Arrays.toString(Arrays.stream((double[])obj).mapToObj(a -> format(a, false)).toArray());
if (canMultiline && clazz.isArray() && clazz.componentType().isArray()) return Arrays.stream((Object[])obj).map(a -> format(a, false)).collect(Collectors.joining("\n"));
if (clazz == Object[].class) return Arrays.toString(Arrays.stream((Object[])obj).map(a -> format(a, false)).toArray());
if (clazz.isArray()) return Arrays.toString((Object[])obj);
return String.valueOf(obj);
}
public void println(Object... args) {
if (args == null || args.getClass() != Object[].class) {
args = new Object[] {args};
}
out.println(Arrays.stream(args)
.map(obj -> obj instanceof Double ? String.format("%.10f", obj) : String.valueOf(obj))
.collect(Collectors.joining(" ")));
if (autoFlush) {
out.flush();
}
}
public void println(char a) {
out.println(a);
if (autoFlush) {
out.flush();
}
}
public void println(int a) {
out.println(a);
if (autoFlush) {
out.flush();
}
}
public void println(long a) {
out.println(a);
if (autoFlush) {
out.flush();
}
}
public void println(double a) {
out.println(String.format("%.10f", a));
if (autoFlush) {
out.flush();
}
}
public void println(String s) {
out.println(s);
if (autoFlush) {
out.flush();
}
}
public void println(char[] s) {
out.println(String.valueOf(s));
if (autoFlush) {
out.flush();
}
}
public void println(int[] a) {
StringJoiner joiner = new StringJoiner(" ");
for (int i : a) {
joiner.add(Integer.toString(i));
}
out.println(joiner);
if (autoFlush) {
out.flush();
}
}
public void println(long[] a) {
StringJoiner joiner = new StringJoiner(" ");
for (long i : a) {
joiner.add(Long.toString(i));
}
out.println(joiner);
if (autoFlush) {
out.flush();
}
}
public void flush() {
err.flush();
out.flush();
}
}