結果

問題 No.456 Millions of Submits!
ユーザー 37zigen37zigen
提出日時 2016-12-08 15:02:44
言語 Java21
(openjdk 21)
結果
WA  
実行時間 -
コード長 4,029 bytes
コンパイル時間 2,589 ms
コンパイル使用メモリ 85,980 KB
実行使用メモリ 80,452 KB
最終ジャッジ日時 2024-06-23 11:02:20
合計ジャッジ時間 12,556 ms
ジャッジサーバーID
（参考情報） 		judge4 / judge1
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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 122 ms
54,236 KB
testcase_01 WA -
testcase_02 WA -
testcase_03 WA -
testcase_04 WA -
testcase_05 WA -
testcase_06 WA -
testcase_07 WA -
testcase_08 WA -
testcase_09 WA -
testcase_10 WA -
testcase_11 WA -
testcase_12 WA -
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ソースコード

diff # 

package yukicoder;

import java.util.*;

import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.InputMismatchException;

class Q456 {
	static InputStream is;
	static PrintWriter out;
	static String INPUT = "";

	static void solver() {
		int m = ni();
		while (m-- > 0) {
			double a = nd();
			double b = nd();
			double t = nd();
			double ans;
			if (a == 0) {
				t = Math.pow(t, 1 / b);
				ans = Math.exp(t);
			} else if (b == 0) {
				t = Math.pow(t, 1 / a);
				ans = t;
			} else {
				double curN = 30;
				for (int i = 0; i < 20; ++i) {
					double y = -t + pow(curN, (int) a) * pow(Math.log(curN), (int) b);
					double yDiff = a * pow(curN, (int) a - 1) * pow(Math.log(curN), (int) b)
							+ b * pow(curN, (int) a - 1) * pow(Math.log(curN), (int) b - 1);
					curN = curN - y / yDiff;
				}
				ans = curN;
			}
			out.printf("%.12f\n", ans);
		}
	}

	static double pow(double a, int n) {
		double ret = 1;
		for (; n > 0; n >>= 1, a *= a) {
			if (n % 2 == 1) {
				ret *= a;
			}
		}
		return ret;
	}

	void run() throws Exception {
		is = INPUT.isEmpty() ? System.in : new ByteArrayInputStream(INPUT.getBytes());
		out = new PrintWriter(System.out);

		long s = System.currentTimeMillis();
		solver();
		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 Q456().run();
	}

	private static byte[] inbuf = new byte[1024];
	public static int lenbuf = 0;
	public static int ptrbuf = 0;

	private static 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 static boolean isSpaceChar(int c) {
		return !(c >= 33 && c <= 126);
	}

	private static int skip() {
		int b;
		while ((b = readByte()) != -1 && isSpaceChar(b))
			;
		return b;
	}

	private static double nd() {
		return Double.parseDouble(ns());
	}

	private char nc() {
		return (char) skip();
	}

	private static 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 static int ni() {
		return (int) nl();
	}

	private static 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));
	}
}
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