結果
問題 | No.1272 珍しい級数 |
ユーザー |
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提出日時 | 2020-10-30 21:50:34 |
言語 | Java (openjdk 23) |
結果 |
AC
|
実行時間 | 56 ms / 2,000 ms |
コード長 | 2,902 bytes |
コンパイル時間 | 2,154 ms |
コンパイル使用メモリ | 78,812 KB |
実行使用メモリ | 50,608 KB |
最終ジャッジ日時 | 2024-07-22 00:14:19 |
合計ジャッジ時間 | 6,253 ms |
ジャッジサーバーID (参考情報) |
judge4 / judge1 |
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ファイルパターン | 結果 |
---|---|
sample | AC * 3 |
other | AC * 50 |
ソースコード
import java.util.*; import java.io.*; public class Main { public static void main(String[] args) throws Exception { FastScanner sc = new FastScanner(System.in); PrintWriter pw = new PrintWriter(System.out); double mod = Math.PI*2; long k = sc.nextLong(); double now = 0d; for(long i = 1; i <= 14; i++){ now += Math.sin((i*k))/(double)rep2(i,i); } pw.println(now); pw.flush(); } private static long rep2(long b, long n){ if(n == 0) return 1; if(n == 1) return b; long bn = rep2(b,n/2); if(n % 2 == 0){ return bn*bn; }else{ return bn*bn*b; } } static class GeekInteger { public static void save_sort(int[] array) { shuffle(array); Arrays.sort(array); } public static int[] shuffle(int[] array) { int n = array.length; Random random = new Random(); for (int i = 0, j; i < n; i++) { j = i + random.nextInt(n - i); int randomElement = array[j]; array[j] = array[i]; array[i] = randomElement; } return array; } } } class FastScanner { private BufferedReader reader = null; private StringTokenizer tokenizer = null; public FastScanner(InputStream in) { reader = new BufferedReader(new InputStreamReader(in)); tokenizer = null; } public String next() { if (tokenizer == null || !tokenizer.hasMoreTokens()) { try { tokenizer = new StringTokenizer(reader.readLine()); } catch (IOException e) { throw new RuntimeException(e); } } return tokenizer.nextToken(); } public String nextLine() { if (tokenizer == null || !tokenizer.hasMoreTokens()) { try { return reader.readLine(); } catch (IOException e) { throw new RuntimeException(e); } } return tokenizer.nextToken("\n"); } public long nextLong() { return Long.parseLong(next()); } public int nextInt() { return Integer.parseInt(next()); } public double nextDouble() { return Double.parseDouble(next()); } public String[] nextArray(int n) { String[] a = new String[n]; for (int i = 0; i < n; i++) a[i] = next(); return a; } public int[] nextIntArray(int n) { int[] a = new int[n]; for (int i = 0; i < n; i++) a[i] = nextInt(); return a; } public long[] nextLongArray(int n) { long[] a = new long[n]; for (int i = 0; i < n; i++) a[i] = nextLong(); return a; } }