結果
問題 | No.813 ユキちゃんの冒険 |
ユーザー | uwi |
提出日時 | 2019-04-20 19:03:06 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 135 ms / 2,000 ms |
コード長 | 3,637 bytes |
コンパイル時間 | 4,045 ms |
コンパイル使用メモリ | 81,228 KB |
実行使用メモリ | 54,192 KB |
最終ジャッジ日時 | 2024-09-21 08:31:15 |
合計ジャッジ時間 | 8,488 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge4 |
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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 | 130 ms
53,964 KB |
testcase_01 | AC | 132 ms
54,068 KB |
testcase_02 | AC | 132 ms
54,144 KB |
testcase_03 | AC | 131 ms
54,108 KB |
testcase_04 | AC | 132 ms
54,152 KB |
testcase_05 | AC | 129 ms
53,980 KB |
testcase_06 | AC | 127 ms
54,156 KB |
testcase_07 | AC | 127 ms
53,896 KB |
testcase_08 | AC | 129 ms
53,888 KB |
testcase_09 | AC | 129 ms
54,192 KB |
testcase_10 | AC | 130 ms
54,020 KB |
testcase_11 | AC | 132 ms
54,004 KB |
testcase_12 | AC | 126 ms
53,824 KB |
testcase_13 | AC | 131 ms
53,908 KB |
testcase_14 | AC | 127 ms
54,008 KB |
testcase_15 | AC | 127 ms
53,872 KB |
testcase_16 | AC | 128 ms
54,116 KB |
testcase_17 | AC | 130 ms
53,920 KB |
testcase_18 | AC | 131 ms
53,996 KB |
testcase_19 | AC | 129 ms
54,176 KB |
testcase_20 | AC | 128 ms
54,088 KB |
testcase_21 | AC | 128 ms
54,180 KB |
testcase_22 | AC | 130 ms
53,904 KB |
testcase_23 | AC | 135 ms
54,084 KB |
testcase_24 | AC | 132 ms
53,696 KB |
testcase_25 | AC | 130 ms
54,096 KB |
ソースコード
package contest190412; import java.io.ByteArrayInputStream; import java.io.IOException; import java.io.InputStream; import java.io.PrintWriter; import java.util.Arrays; import java.util.InputMismatchException; // クソデカ溜息 public class E2 { InputStream is; PrintWriter out; String INPUT = ""; void solve() { int n = ni(); double P = nd(), Q = nd(); // 1-> <--p q--> // (p,q),(r,s) // p 0 q 0 // p qr 0 qs // p+q^2*r 0 qrp qs // p+q^2*r qrpr 0 qs+qrps // p+q^2*r+qrprq 0 qrprp qs+qrps+qrprps+... double[] c = {0, 1}; double[] m = {P, Q}; for(int i = 0;i < 10;i++) { if(n<<~i<0) { c = mul(c, m); } m = mul(m, m); } out.printf("%.14f\n", c[0]); } // p+q^2*r+q^2*r^2p+... = p+q^2*r/(1-rp) // qs+qrps+qrprps+... = qs/(1-rp) double[] mul(double[] a, double[] b) { return new double[] { a[0]+a[1]*a[1]*b[0]/(1-b[0]*a[0]), a[1]*b[1]/(1-a[0]*b[0]) }; } void run() throws Exception { is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes()); out = new PrintWriter(System.out); long s = System.currentTimeMillis(); solve(); out.flush(); if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // Thread t = new Thread(null, null, "~", Runtime.getRuntime().maxMemory()){ // @Override // public void run() { // long s = System.currentTimeMillis(); // solve(); // out.flush(); // if(!INPUT.isEmpty())tr(System.currentTimeMillis()-s+"ms"); // } // }; // t.start(); // t.join(); } public static void main(String[] args) throws Exception { new E2().run(); } private byte[] inbuf = new byte[1024]; public int lenbuf = 0, ptrbuf = 0; private int readByte() { if(lenbuf == -1)throw new InputMismatchException(); if(ptrbuf >= lenbuf){ ptrbuf = 0; try { lenbuf = is.read(inbuf); } catch (IOException e) { throw new InputMismatchException(); } if(lenbuf <= 0)return -1; } return inbuf[ptrbuf++]; } private boolean isSpaceChar(int c) { return !(c >= 33 && c <= 126); } private int skip() { int b; while((b = readByte()) != -1 && isSpaceChar(b)); return b; } private double nd() { return Double.parseDouble(ns()); } private char nc() { return (char)skip(); } private String ns() { int b = skip(); StringBuilder sb = new StringBuilder(); while(!(isSpaceChar(b))){ // when nextLine, (isSpaceChar(b) && b != ' ') sb.appendCodePoint(b); b = readByte(); } return sb.toString(); } private char[] ns(int n) { char[] buf = new char[n]; int b = skip(), p = 0; while(p < n && !(isSpaceChar(b))){ buf[p++] = (char)b; b = readByte(); } return n == p ? buf : Arrays.copyOf(buf, p); } private int[] na(int n) { int[] a = new int[n]; for(int i = 0;i < n;i++)a[i] = ni(); return a; } private long[] nal(int n) { long[] a = new long[n]; for(int i = 0;i < n;i++)a[i] = nl(); return a; } private char[][] nm(int n, int m) { char[][] map = new char[n][]; for(int i = 0;i < n;i++)map[i] = ns(m); return map; } private int[][] nmi(int n, int m) { int[][] map = new int[n][]; for(int i = 0;i < n;i++)map[i] = na(m); return map; } private int ni() { return (int)nl(); } private long nl() { long num = 0; int b; boolean minus = false; while((b = readByte()) != -1 && !((b >= '0' && b <= '9') || b == '-')); if(b == '-'){ minus = true; b = readByte(); } while(true){ if(b >= '0' && b <= '9'){ num = num * 10 + (b - '0'); }else{ return minus ? -num : num; } b = readByte(); } } private static void tr(Object... o) { System.out.println(Arrays.deepToString(o)); } }