結果
問題 |
No.1791 Repeat Multiplication
|
ユーザー |
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提出日時 | 2023-01-17 09:34:51 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 533 ms / 3,000 ms |
コード長 | 2,271 bytes |
コンパイル時間 | 5,952 ms |
コンパイル使用メモリ | 93,024 KB |
実行使用メモリ | 81,800 KB |
最終ジャッジ日時 | 2025-01-02 04:46:07 |
合計ジャッジ時間 | 17,743 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge3 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 32 |
ソースコード
import java.io.*; import java.util.*; import java.util.stream.*; public class Main { static long[] counts; public static void main(String[] args) throws Exception { Scanner sc = new Scanner(); int n = sc.nextInt(); int q = sc.nextInt(); counts = new long[n + 1]; for (int i = 1; i <= n; i++) { dfw(i); } long[] times = new long[n + 1]; times[1] = 1; for (int i = 1; i <= n; i++) { for (int j = 2; j * i <= n; j++) { times[j * i] += times[i]; } counts[i] *= times[i]; } StringBuilder sb = new StringBuilder(); while (q-- > 0) { sb.append(counts[sc.nextInt()]).append("\n"); } System.out.print(sb); } static long dfw(int x) { if (counts[x] == 0) { counts[x] = 1; for (int i = 2; i * x < counts.length; i++) { counts[x] += dfw(x * i); } } return counts[x]; } } 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(); } }