結果
問題 | No.2060 AND Sequence |
ユーザー | hiromi_ayase |
提出日時 | 2022-08-27 00:43:48 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 78 ms / 2,000 ms |
コード長 | 3,016 bytes |
コンパイル時間 | 3,348 ms |
コンパイル使用メモリ | 90,004 KB |
実行使用メモリ | 38,336 KB |
最終ジャッジ日時 | 2024-10-14 01:22:20 |
合計ジャッジ時間 | 7,887 ms |
ジャッジサーバーID (参考情報) |
judge3 / judge5 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 43 |
ソースコード
import java.util.*; @SuppressWarnings("unused") public class Main { private static void solve() { int n = ni(); int m = ni(); int mod = 998244353; int k = 0; while ((m >> k) > 0) k ++; long[][] dp = new long[k + 1][2]; dp[k][0] = 1; for (int i = k - 1; i >= 0; i --) { int b = m >> i & 1; if (b == 0) { dp[i][0] += dp[i + 1][0]; dp[i][1] += dp[i + 1][1] * (n + 1) % mod; } else { dp[i][0] += dp[i + 1][0] * n; dp[i][1] += dp[i + 1][1] * (n + 1) % mod + dp[i + 1][0]; } dp[i][0] %= mod; dp[i][1] %= mod; } System.out.println((dp[0][0] + dp[0][1]) % mod); } public static void main(String[] args) { new Thread(null, new Runnable() { @Override public void run() { long start = System.currentTimeMillis(); String debug = args.length > 0 ? args[0] : null; if (debug != null) { try { is = java.nio.file.Files.newInputStream(java.nio.file.Paths.get(debug)); } catch (Exception e) { throw new RuntimeException(e); } } reader = new java.io.BufferedReader(new java.io.InputStreamReader(is), 32768); solve(); out.flush(); tr((System.currentTimeMillis() - start) + "ms"); } }, "", 64000000).start(); } private static java.io.InputStream is = System.in; private static java.io.PrintWriter out = new java.io.PrintWriter(System.out); private static java.util.StringTokenizer tokenizer = null; private static java.io.BufferedReader reader; public static String next() { while (tokenizer == null || !tokenizer.hasMoreTokens()) { try { tokenizer = new java.util.StringTokenizer(reader.readLine()); } catch (Exception e) { throw new RuntimeException(e); } } return tokenizer.nextToken(); } private static double nd() { return Double.parseDouble(next()); } private static long nl() { return Long.parseLong(next()); } private static int[] na(int n) { int[] a = new int[n]; for (int i = 0; i < n; i++) a[i] = ni(); return a; } private static char[] ns() { return next().toCharArray(); } private static long[] nal(int n) { long[] a = new long[n]; for (int i = 0; i < n; i++) a[i] = nl(); return a; } private static int[][] ntable(int n, int m) { int[][] table = new int[n][m]; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { table[i][j] = ni(); } } return table; } private static int[][] nlist(int n, int m) { int[][] table = new int[m][n]; for (int i = 0; i < n; i++) { for (int j = 0; j < m; j++) { table[j][i] = ni(); } } return table; } private static int ni() { return Integer.parseInt(next()); } private static void tr(Object... o) { if (is != System.in) System.out.println(java.util.Arrays.deepToString(o)); } }