#209323 (Java21) No.578 3 x N グリッド上のサイクルのサイズ(easy)

提出ソース

結果

問題	No.578 3 x N グリッド上のサイクルのサイズ(easy)
ユーザー	uwi
提出日時	2017-10-13 22:53:13
言語	Java21 (openjdk 21)
結果	AC
実行時間	46 ms / 2,000 ms
コード長	5,330 bytes
コンパイル時間	3,807 ms
コンパイル使用メモリ	82,404 KB
実行使用メモリ	49,924 KB
最終ジャッジ日時	2023-08-11 00:28:19
合計ジャッジ時間	9,486 ms
ジャッジサーバーID （参考情報）	judge14 / judge13

このコードへのチャレンジ（β）

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	43 ms 49,364 KB
testcase_01	AC	43 ms 49,384 KB
testcase_02	AC	43 ms 49,308 KB
testcase_03	AC	42 ms 49,332 KB
testcase_04	AC	43 ms 49,356 KB
testcase_05	AC	43 ms 49,484 KB
testcase_06	AC	43 ms 49,408 KB
testcase_07	AC	44 ms 49,504 KB
testcase_08	AC	43 ms 49,420 KB
testcase_09	AC	43 ms 49,424 KB
testcase_10	AC	43 ms 49,360 KB
testcase_11	AC	46 ms 49,316 KB
testcase_12	AC	43 ms 49,324 KB
testcase_13	AC	43 ms 49,412 KB
testcase_14	AC	43 ms 47,344 KB
testcase_15	AC	43 ms 49,500 KB
testcase_16	AC	44 ms 49,416 KB
testcase_17	AC	43 ms 49,192 KB
testcase_18	AC	44 ms 49,380 KB
testcase_19	AC	44 ms 49,412 KB
testcase_20	AC	44 ms 49,404 KB
testcase_21	AC	45 ms 47,352 KB
testcase_22	AC	44 ms 49,420 KB
testcase_23	AC	45 ms 49,384 KB
testcase_24	AC	45 ms 49,440 KB
testcase_25	AC	45 ms 47,424 KB
testcase_26	AC	44 ms 49,264 KB
testcase_27	AC	45 ms 49,552 KB
testcase_28	AC	44 ms 49,352 KB
testcase_29	AC	44 ms 49,496 KB
testcase_30	AC	44 ms 49,520 KB
testcase_31	AC	44 ms 49,320 KB
testcase_32	AC	44 ms 49,924 KB
testcase_33	AC	44 ms 49,876 KB
testcase_34	AC	44 ms 49,416 KB
testcase_35	AC	44 ms 49,332 KB
testcase_36	AC	44 ms 49,252 KB
testcase_37	AC	44 ms 49,396 KB
testcase_38	AC	44 ms 49,284 KB
testcase_39	AC	44 ms 49,376 KB
testcase_40	AC	44 ms 49,504 KB
testcase_41	AC	43 ms 49,456 KB
testcase_42	AC	44 ms 49,180 KB
testcase_43	AC	45 ms 49,564 KB
testcase_44	AC	44 ms 49,744 KB
testcase_45	AC	45 ms 49,548 KB
testcase_46	AC	44 ms 49,244 KB
testcase_47	AC	45 ms 49,416 KB
testcase_48	AC	45 ms 49,404 KB
testcase_49	AC	45 ms 49,200 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

raw source code

package contest171013;
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 C {
	InputStream is;
	PrintWriter out;
	String INPUT = "";
	
	void solve()
	{
		long n = nl();
		// 1100
		// 0110
		// 0011
		// 1010
		// 0101
		// 1001
		// 1122
		// 1221
		int[][] M = new int[20][20];
		int[] v = new int[20];
		v[18] = 1;
		a(M, 8, 8, 0);
		a(M, 9, 9, 0);
		
		a(M, 8, 0, 2); a(M, 0, 9, 2);
		a(M, 8, 1, 2); a(M, 1, 9, 2);
		a(M, 8, 2, 2); a(M, 2, 9, 2);
		a(M, 8, 3, 3); a(M, 3, 9, 3);
		a(M, 8, 4, 3); a(M, 4, 9, 3);
		a(M, 8, 5, 4); a(M, 5, 9, 4);
		a(M, 8, 6, 4);
		a(M, 7, 9, 4);
		
		a(M, 0, 0, 2);
		a(M, 0, 3, 3);
		a(M, 0, 5, 4);
		a(M, 0, 6, 4);
		a(M, 1, 1, 2);
		a(M, 1, 3, 3);
		a(M, 1, 4, 3);
		a(M, 1, 5, 4);
		a(M, 2, 2, 2);
		a(M, 2, 4, 3);
		a(M, 2, 5, 4);
		a(M, 2, 6, 4);
		a(M, 3, 0, 3);
		a(M, 3, 1, 3);
		a(M, 3, 3, 2);
		a(M, 3, 4, 4);
		a(M, 3, 5, 3);
		a(M, 4, 1, 3);
		a(M, 4, 2, 3);
		a(M, 4, 3, 4);
		a(M, 4, 4, 2);
		a(M, 4, 5, 3);
		a(M, 5, 0, 4);
		a(M, 5, 1, 4);
		a(M, 5, 2, 4);
		a(M, 5, 3, 3);
		a(M, 5, 4, 3);
		a(M, 5, 5, 2);
		a(M, 5, 7, 4);
		a(M, 6, 5, 4);
		a(M, 6, 6, 4);
		a(M, 7, 0, 4);
		a(M, 7, 2, 4);
		a(M, 7, 7, 4);
		
		int[] ret = pow(M, v, n+1);
		out.println(ret[9]);
	}
	
	void a(int[][] M, int f, int t, int mul)
	{
		M[t][f] = 1;
		M[t+10][f+10] = 1;
		M[t][f+10] = mul;
	}
	
	public static final int mod = 1000000007;
	public static final long m2 = (long)mod*mod;
	public static final long BIG = 8L*m2;
	
	// A^e*v
	public static int[] pow(int[][] A, int[] v, long e)
	{
		for(int i = 0;i < v.length;i++){
			if(v[i] >= mod)v[i] %= mod;
		}
		int[][] MUL = A;
		for(;e > 0;e>>>=1) {
			if((e&1)==1)v = mul(MUL, v);
			MUL = p2(MUL);
		}
		return v;
	}
	
	// int matrix*int vector
	public static int[] mul(int[][] A, int[] v)
	{
		int m = A.length;
		int n = v.length;
		int[] w = new int[m];
		for(int i = 0;i < m;i++){
			long sum = 0;
			for(int k = 0;k < n;k++){
				sum += (long)A[i][k] * v[k];
				if(sum >= BIG)sum -= BIG;
			}
			w[i] = (int)(sum % mod);
		}
		return w;
	}
	
	// int matrix^2 (be careful about negative value)
	public static int[][] p2(int[][] A)
	{
		int n = A.length;
		int[][] C = new int[n][n];
		for(int i = 0;i < n;i++){
			long[] sum = new long[n];
			for(int k = 0;k < n;k++){
				for(int j = 0;j < n;j++){
					sum[j] += (long)A[i][k] * A[k][j];
					if(sum[j] >= BIG)sum[j] -= BIG;
				}
			}
			for(int j = 0;j < n;j++){
				C[i][j] = (int)(sum[j] % mod);
			}
		}
		return C;
	}

	
	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 C().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)); }
}

yukicoder

結果

テストケース

ソースコード