結果
問題 | No.475 最終日 - Writerの怠慢 |
ユーザー | Grenache |
提出日時 | 2016-12-25 13:09:27 |
言語 | Java19 (openjdk 21) |
結果 |
AC
|
実行時間 | 293 ms / 2,000 ms |
コード長 | 4,686 bytes |
コンパイル時間 | 3,645 ms |
コンパイル使用メモリ | 76,784 KB |
実行使用メモリ | 57,976 KB |
最終ジャッジ日時 | 2023-08-25 16:42:27 |
合計ジャッジ時間 | 7,922 ms |
ジャッジサーバーID (参考情報) |
judge11 / judge12 |
テストケース
テストケース表示入力 | 結果 | 実行時間 実行使用メモリ |
---|---|---|
testcase_00 | AC | 115 ms
55,888 KB |
testcase_01 | AC | 120 ms
56,012 KB |
testcase_02 | AC | 126 ms
55,516 KB |
testcase_03 | AC | 161 ms
56,548 KB |
testcase_04 | AC | 289 ms
57,976 KB |
testcase_05 | AC | 274 ms
57,240 KB |
testcase_06 | AC | 280 ms
57,612 KB |
testcase_07 | AC | 286 ms
57,840 KB |
testcase_08 | AC | 286 ms
57,320 KB |
testcase_09 | AC | 293 ms
57,020 KB |
testcase_10 | AC | 284 ms
57,536 KB |
testcase_11 | AC | 265 ms
57,232 KB |
testcase_12 | AC | 202 ms
54,708 KB |
testcase_13 | AC | 125 ms
53,032 KB |
testcase_14 | AC | 42 ms
49,524 KB |
ソースコード
import java.io.*; import java.util.*; public class Main_yukicoder475 { private static Scanner sc; private static Printer pr; private static void solve() { int n = sc.nextInt(); int s = sc.nextInt(); int id = sc.nextInt(); int[] a = new int[n]; for (int i = 0; i < n; i++) { a[i] = sc.nextInt(); } int wsc = a[id]; int sc = wsc + s * 100; Arrays.sort(a); double ret = 1; for (int i = 0; i < n - 1; i++) { int tmp = 50 * s + 250 * s / (4 + (i + 1)); int key = sc - tmp; int index = lower_bound(a, 0, n, key); if (index - i - (key >= wsc ? 1 : 0) <= 0) { pr.println(0); return; } ret *= (double)(index - i - (key >= wsc ? 1 : 0)) / (n - 1 - i); } pr.printf("%.10f\n", ret); } private static int lower_bound(int[] data, int l, int r, int value) { while (r > l) { int mid = l + (r - l) / 2; // if (data[mid] >= value) { if (data[mid] > value) { r = mid; } else { l = mid + 1; } } return l; } // --------------------------------------------------- public static void main(String[] args) { sc = new Scanner(System.in); pr = new Printer(System.out); solve(); pr.close(); sc.close(); } @SuppressWarnings("unused") private static class Scanner { BufferedReader br; Scanner (InputStream in) { br = new BufferedReader(new InputStreamReader(in)); } private boolean isPrintable(int ch) { return ch >= '!' && ch <= '~'; } private boolean isCRLF(int ch) { return ch == '\n' || ch == '\r' || ch == -1; } private int nextPrintable() { try { int ch; while (!isPrintable(ch = br.read())) { if (ch == -1) { throw new NoSuchElementException(); } } return ch; } catch (IOException e) { throw new NoSuchElementException(); } } String next() { try { int ch = nextPrintable(); StringBuilder sb = new StringBuilder(); do { sb.appendCodePoint(ch); } while (isPrintable(ch = br.read())); return sb.toString(); } catch (IOException e) { throw new NoSuchElementException(); } } int nextInt() { try { // parseInt from Integer.parseInt() boolean negative = false; int res = 0; int limit = -Integer.MAX_VALUE; int radix = 10; int fc = nextPrintable(); if (fc < '0') { if (fc == '-') { negative = true; limit = Integer.MIN_VALUE; } else if (fc != '+') { throw new NumberFormatException(); } fc = br.read(); } int multmin = limit / radix; int ch = fc; do { int digit = ch - '0'; if (digit < 0 || digit >= radix) { throw new NumberFormatException(); } if (res < multmin) { throw new NumberFormatException(); } res *= radix; if (res < limit + digit) { throw new NumberFormatException(); } res -= digit; } while (isPrintable(ch = br.read())); return negative ? res : -res; } catch (IOException e) { throw new NoSuchElementException(); } } long nextLong() { try { // parseLong from Long.parseLong() boolean negative = false; long res = 0; long limit = -Long.MAX_VALUE; int radix = 10; int fc = nextPrintable(); if (fc < '0') { if (fc == '-') { negative = true; limit = Long.MIN_VALUE; } else if (fc != '+') { throw new NumberFormatException(); } fc = br.read(); } long multmin = limit / radix; int ch = fc; do { int digit = ch - '0'; if (digit < 0 || digit >= radix) { throw new NumberFormatException(); } if (res < multmin) { throw new NumberFormatException(); } res *= radix; if (res < limit + digit) { throw new NumberFormatException(); } res -= digit; } while (isPrintable(ch = br.read())); return negative ? res : -res; } catch (IOException e) { throw new NoSuchElementException(); } } float nextFloat() { return Float.parseFloat(next()); } double nextDouble() { return Double.parseDouble(next()); } String nextLine() { try { int ch; while (isCRLF(ch = br.read())) { if (ch == -1) { throw new NoSuchElementException(); } } StringBuilder sb = new StringBuilder(); do { sb.appendCodePoint(ch); } while (!isCRLF(ch = br.read())); return sb.toString(); } catch (IOException e) { throw new NoSuchElementException(); } } void close() { try { br.close(); } catch (IOException e) { // throw new NoSuchElementException(); } } } private static class Printer extends PrintWriter { Printer(PrintStream out) { super(out); } } }