結果
問題 | No.1073 無限すごろく |
ユーザー |
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提出日時 | 2022-08-30 16:16:18 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 57 ms / 2,000 ms |
コード長 | 2,362 bytes |
コンパイル時間 | 3,239 ms |
コンパイル使用メモリ | 77,624 KB |
実行使用メモリ | 37,364 KB |
最終ジャッジ日時 | 2024-11-07 10:42:55 |
合計ジャッジ時間 | 5,252 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 30 |
ソースコード
import java.io.*;import java.util.*;public class Main {static final int MOD = 1000000007;public static void main(String[] args) throws Exception {Scanner sc = new Scanner();long n = sc.nextLong();long[][][] matrix = new long[60][6][6];long tmp = pow(6, MOD - 2);matrix[0] = new long[][]{{tmp, tmp, tmp, tmp, tmp, tmp}, {1, 0, 0, 0, 0, 0}, {0, 1, 0, 0, 0, 0}, {0, 0, 1, 0, 0, 0}, {0, 0, 0, 1, 0, 0}, {0, 0, 0, 0, 1, 0}};for (int i = 1; i < 60; i++) {for (int a = 0; a < 6; a++) {for (int b = 0; b < 6; b++) {for (int c = 0; c < 6; c++) {matrix[i][a][c] += matrix[i - 1][a][b] * matrix[i - 1][b][c];matrix[i][a][c] %= MOD;}}}}long[] ans = new long[]{1, 0, 0, 0, 0, 0};for (int i = 59; i >= 0; i--) {if (n < (1L << i)) {continue;}n -= (1L << i);long[] nexts = new long[6];for (int a = 0; a < 6; a++) {for (int b = 0; b < 6; b++) {nexts[a] += matrix[i][a][b] * ans[b] % MOD;nexts[a] %= MOD;}}ans = nexts;}System.out.println(ans[0]);}static long pow(long x, int p) {if (p == 0) {return 1;} else if (p % 2 == 0) {return pow(x * x % MOD, p / 2);} else {return pow(x, p - 1) * x % MOD;}}}class Scanner {BufferedReader br = new BufferedReader(new InputStreamReader(System.in));StringTokenizer st = new StringTokenizer("");StringBuilder sb = new StringBuilder();public Scanner() throws Exception {}public int nextInt() throws Exception {return Integer.parseInt(next());}public long nextLong() throws Exception {return Long.parseLong(next());}public double nextDouble() throws Exception {return Double.parseDouble(next());}public String next() throws Exception {while (!st.hasMoreTokens()) {st = new StringTokenizer(br.readLine());}return st.nextToken();}}