結果
問題 |
No.1704 Many Bus Stops (easy)
|
ユーザー |
![]() |
提出日時 | 2024-01-11 17:50:22 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 165 ms / 2,000 ms |
コード長 | 3,101 bytes |
コンパイル時間 | 2,847 ms |
コンパイル使用メモリ | 91,396 KB |
実行使用メモリ | 56,536 KB |
最終ジャッジ日時 | 2024-09-27 20:39:06 |
合計ジャッジ時間 | 10,168 ms |
ジャッジサーバーID (参考情報) |
judge1 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 1 |
other | AC * 41 |
ソースコード
import java.io.*; import java.util.*; import java.util.stream.*; public class Main { static final int MOD = 1000000007; public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); long rate = pow(3, MOD - 2); long[][][] matrix = new long[30][6][6]; matrix[0] = new long[][]{{0, 0, 0, 1, 0, 0}, {0, 0, 0, 0, 1, 0}, {0, 0, 0, 0, 0, 1}, {0, rate, rate, rate, 0, 0}, {rate, 0, rate, 0, rate, 0}, {rate, rate, 0, 0, 0, rate}}; for (int i = 1; i < 30; 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; } } } } StringBuilder sb = new StringBuilder(); while (n-- > 0) { int k = sc.nextInt(); long[] ans = new long[]{1, 0, 0, rate, 0, 0}; for (int i = 29; i >= 0; i--) { if (k < (1 << i)) { continue; } k -= (1 << i); long[] next = new long[6]; for (int a = 0; a < 6; a++) { for (int b = 0; b < 6; b++) { next[a] += matrix[i][a][b] * ans[b] % MOD; next[a] %= MOD; } } ans = next; } sb.append(ans[0]).append("\n"); } System.out.print(sb); } 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 Utilities { static String arrayToLineString(Object[] arr) { return Arrays.stream(arr).map(x -> x.toString()).collect(Collectors.joining("\n")); } static String arrayToLineString(int[] arr) { return String.join("\n", Arrays.stream(arr).mapToObj(String::valueOf).toArray(String[]::new)); } } 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 int[] nextIntArray() throws Exception { return Stream.of(br.readLine().split(" ")).mapToInt(Integer::parseInt).toArray(); } public String next() throws Exception { while (!st.hasMoreTokens()) { st = new StringTokenizer(br.readLine()); } return st.nextToken(); } }