結果

問題 No.309 シャイな人たち (1)
ユーザー ぴろずぴろず
提出日時 2015-12-03 17:34:28
言語 Java21
(openjdk 21)
結果
AC  
実行時間 784 ms / 4,000 ms
コード長 7,069 bytes
コンパイル時間 2,684 ms
コンパイル使用メモリ 88,868 KB
実行使用メモリ 72,012 KB
最終ジャッジ日時 2024-09-14 08:28:29
合計ジャッジ時間 12,080 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge2
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 654 ms
71,956 KB
testcase_01 AC 778 ms
71,724 KB
testcase_02 AC 439 ms
71,880 KB
testcase_03 AC 662 ms
72,012 KB
testcase_04 AC 106 ms
52,296 KB
testcase_05 AC 263 ms
56,804 KB
testcase_06 AC 465 ms
71,900 KB
testcase_07 AC 495 ms
71,976 KB
testcase_08 AC 734 ms
71,816 KB
testcase_09 AC 784 ms
71,908 KB
testcase_10 AC 762 ms
71,868 KB
testcase_11 AC 764 ms
71,924 KB
testcase_12 AC 673 ms
71,760 KB
testcase_13 AC 56 ms
49,752 KB
testcase_14 AC 55 ms
50,188 KB
testcase_15 AC 202 ms
56,976 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 no309b;

import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.InputMismatchException;
import java.util.NoSuchElementException;

public class Main {
	public static long stime;
	public static double solve(int r,int c,double[][] p,int[][] s) {
		int[] table = new int[1<<(c*2)];
		int[] po = new int[c];
		for(int i=0;i<1<<(c*2);i++) {
			int i_ = i;
			for(int j=0;j<c;j++) {
				po[j] = (i_ & 3) + 1;
				i_ >>>= 2;
			}
			for(int j=0;j<c-1;j++) {
				if (po[j] >= 4) {
					po[j+1]++;
				}
			}
			for(int j=c-1;j>=1;j--) {
				if (po[j] >= 4) {
					po[j-1]++;
				}
			}
			for(int j=c-1;j>=0;j--) {
				table[i] <<= 1;
				table[i] |= po[j] >= 4 ? 1 : 0;
			}
//			System.out.println(tetral(i,c) + "," + binary(table[i],c));
		}

		int[] m1m = new int[1<<c];
		int[] m2m = new int[1<<c];
		int[] bitcount = new int[1<<c];
		for(int i=0;i<1<<c;i++) {
			for(int j=c-1;j>=0;j--) {
				m1m[i] = (m1m[i] << 2) | (i >> j & 1);
			}
			m2m[i] = m1m[i] | (m1m[i] << 1);
			bitcount[i] = Integer.bitCount(i);
//			System.out.println(tetral(m1m[i],c) + "," + tetral(m2m[i],c) + "," + bitcount[i]);
		}

		int[] s2 = new int[r];
		int[] ngmask = new int[r];
		int[] okmask = new int[r];
		for(int i=0;i<r;i++) {
			for(int j=c-1;j>=0;j--) {
				s2[i] <<= 2;
				ngmask[i] <<= 2;
				okmask[i] <<= 2;
				if (s[i][j] == 0) {
					okmask[i] |= 3;
				}else if(s[i][j] == 4) {
					ngmask[i] |= 3;
				}else{
					s2[i] |= 3 - s[i][j];
				}
			}
//			System.out.println(tetral(s2[i],c) + "," + tetral(ngmask[i],c) + "," + tetral(okmask[i],c));
		}

//		lap();

		double ans = 0;
		double[] bef = new double[1<<c];
		bef[0] = 1;

		for(int i=0;i<r;i++) {
			double[] now = new double[1<<c];
			for(int m2=0;m2<1<<c;m2++) { //この列の知っている人
				double q = 1;
				for(int j=0;j<c;j++) {
					q *= ((m2 >> j) & 1) > 0 ? p[i][j] : (1 - p[i][j]);
				}
				for(int m1=0;m1<1<<c;m1++) { //前の列の手の挙げ方
					if (bef[m1] == 0) {
						continue;
					}
//					System.out.println("----");
//					System.out.println(i + "," + binary(m1,c) + "," + binary(m2,c));
//					System.out.println("front:" + tetral(m1m[m1],c));
//					System.out.println("know :" + binary(m2,c));
//					System.out.println("point:" + tetral(m2m[m2] & s2[i],c));
//					System.out.println("ng   :" + tetral(ngmask[i],c));
//					System.out.println("ok   :" + tetral(m2m[m2] & okmask[i],c));
					int point = ((m1m[m1] + s2[i]) & m2m[m2] & ~ngmask[i]) | (m2m[m2] & okmask[i]);
//					System.out.println("total:" + tetral(point,c));
					int m3 = table[point];
//					System.out.println(binary(m3,c));

					now[m3] += bef[m1] * q;
					ans += bef[m1] * q * bitcount[m3];
				}
			}

			bef = now;
		}
		return ans;
	}

	public static void main(String[] args) {

		IO io = new IO();
		int r = io.nextInt();
		int c = io.nextInt();
		double[][] p = new double[r][c];
		for(int i=0;i<r;i++) {
			for(int j=0;j<c;j++) {
				p[i][j] = io.nextInt() / 100D;
			}
		}
		int[][] s = io.nextIntMatrix(r, c);
		stime = System.nanoTime();
		System.out.println(solve(r,c,p,s));
//		lap();
	}

	public static void lap() {
		System.out.println((System.nanoTime() - stime) / 1000000 + " ms");
	}

	public static String tetral(int x,int c) {
		StringBuilder sb = new StringBuilder();
		for(int i=0;i<c;i++) {
			sb.append(x & 3);
			x >>= 2;
		}
		return sb.toString();
	}
	public static String binary(int x,int c) {
		StringBuilder sb = new StringBuilder();
		for(int i=0;i<c;i++) {
			sb.append(x & 1);
			x >>= 1;
		}
		return sb.toString();
	}
}
class IO extends PrintWriter {
	private final InputStream in;
	private final byte[] buffer = new byte[1024];
	private int ptr = 0;
	private int buflen = 0;

	public IO() { this(System.in);}
	public IO(InputStream source) { super(System.out); this.in = source;}
	private boolean hasNextByte() {
		if (ptr < buflen) {
			return true;
		}else{
			ptr = 0;
			try {
				buflen = in.read(buffer);
			} catch (IOException e) {
				e.printStackTrace();
			}
			if (buflen <= 0) {
				return false;
			}
		}
		return true;
	}
	private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
	private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
	private static boolean isNewLine(int c) { return c == '\n' || c == '\r';}
	public boolean hasNext() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++; return hasNextByte();}
	public boolean hasNextLine() { while(hasNextByte() && isNewLine(buffer[ptr])) ptr++; return hasNextByte();}
	public String next() {
		if (!hasNext()) {
			throw new NoSuchElementException();
		}
		StringBuilder sb = new StringBuilder();
		int b = readByte();
		while(isPrintableChar(b)) {
			sb.appendCodePoint(b);
			b = readByte();
		}
		return sb.toString();
	}
	public char[] nextCharArray(int len) {
		if (!hasNext()) {
			throw new NoSuchElementException();
		}
		char[] s = new char[len];
		int i = 0;
		int b = readByte();
		while(isPrintableChar(b)) {
			if (i == len) {
				throw new InputMismatchException();
			}
			s[i++] = (char) b;
			b = readByte();
		}
		return s;
	}
	public String nextLine() {
		if (!hasNextLine()) {
			throw new NoSuchElementException();
		}
		StringBuilder sb = new StringBuilder();
		int b = readByte();
		while(!isNewLine(b)) {
			sb.appendCodePoint(b);
			b = readByte();
		}
		return sb.toString();
	}
	public long nextLong() {
		if (!hasNext()) {
			throw new NoSuchElementException();
		}
		long n = 0;
		boolean minus = false;
		int b = readByte();
		if (b == '-') {
			minus = true;
			b = readByte();
		}
		if (b < '0' || '9' < b) {
			throw new NumberFormatException();
		}
		while(true){
			if ('0' <= b && b <= '9') {
				n *= 10;
				n += b - '0';
			}else if(b == -1 || !isPrintableChar(b)){
				return minus ? -n : n;
			}else{
				throw new NumberFormatException();
			}
			b = readByte();
		}
	}
	public int nextInt() {
		long nl = nextLong();
		if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) {
			throw new NumberFormatException();
		}
		return (int) nl;
	}
	public char nextChar() {
		if (!hasNext()) {
			throw new NoSuchElementException();
		}
		return (char) readByte();
	}
	public double nextDouble() { return Double.parseDouble(next());}
	public int[] nextIntArray(int n) { int[] a = new int[n]; for(int i=0;i<n;i++) a[i] = nextInt(); 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 double[] nextDoubleArray(int n) { double[] a = new double[n]; for(int i=0;i<n;i++) a[i] = nextDouble(); return a;}
	public void nextIntArrays(int[]... a) { for(int i=0;i<a[0].length;i++) for(int j=0;j<a.length;j++) a[j][i] = nextInt();}
	public int[][] nextIntMatrix(int n,int m) { int[][] a = new int[n][]; for(int i=0;i<n;i++) a[i] = nextIntArray(m); return a;}
	public char[][] nextCharMap(int n,int m) { char[][] a = new char[n][]; for(int i=0;i<n;i++) a[i] = nextCharArray(m); return a;}
	public void close() { super.close(); try {in.close();} catch (IOException e) {}}
}
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