結果

問題 No.67 よくある棒を切る問題 (1)
ユーザー ぴろずぴろず
提出日時 2014-12-12 09:27:02
言語 Java21
(openjdk 21)
結果
AC  
実行時間 308 ms / 5,000 ms
コード長 4,785 bytes
コンパイル時間 2,792 ms
コンパイル使用メモリ 78,044 KB
実行使用メモリ 43,136 KB
最終ジャッジ日時 2024-11-08 11:23:37
合計ジャッジ時間 12,202 ms
ジャッジサーバーID
（参考情報） 		judge2 / judge5
このコードへのチャレンジ
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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 300 ms
42,908 KB
testcase_01 AC 129 ms
40,752 KB
testcase_02 AC 219 ms
41,888 KB
testcase_03 AC 276 ms
42,448 KB
testcase_04 AC 293 ms
42,892 KB
testcase_05 AC 291 ms
42,892 KB
testcase_06 AC 294 ms
43,008 KB
testcase_07 AC 305 ms
42,836 KB
testcase_08 AC 305 ms
42,988 KB
testcase_09 AC 306 ms
42,972 KB
testcase_10 AC 283 ms
43,028 KB
testcase_11 AC 286 ms
42,868 KB
testcase_12 AC 281 ms
42,748 KB
testcase_13 AC 298 ms
42,996 KB
testcase_14 AC 299 ms
42,808 KB
testcase_15 AC 287 ms
42,600 KB
testcase_16 AC 297 ms
43,072 KB
testcase_17 AC 294 ms
42,932 KB
testcase_18 AC 295 ms
42,824 KB
testcase_19 AC 308 ms
43,136 KB
testcase_20 AC 306 ms
42,800 KB
testcase_21 AC 307 ms
43,124 KB
testcase_22 AC 283 ms
42,704 KB
testcase_23 AC 296 ms
42,800 KB
testcase_24 AC 120 ms
40,880 KB
testcase_25 AC 148 ms
41,472 KB
testcase_26 AC 140 ms
41,580 KB
testcase_27 AC 140 ms
41,448 KB
testcase_28 AC 179 ms
41,384 KB
testcase_29 AC 171 ms
41,328 KB
testcase_30 AC 153 ms
41,224 KB
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ソースコード

diff # 

import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.text.DecimalFormat;
import java.util.InputMismatchException;
import java.util.NoSuchElementException;

public class Main {

	public static void main(String[] args) {
		IO io = new IO();
		int n = io.nextInt();
		long[] l = io.arrayLong(n);
		long k = io.nextLong();
		double left = 1E-9;
		double right = 1E9;
		for(int i=0;i<70;i++) {
			double center = (left + right) / 2;
			long num = 0;
			for(int j=0;j<n;j++) {
				num += Math.floor(l[j] / center);
			}
			if (num >= k) {
				left = center;
			}else{
				right = center;
			}
		}
		System.out.println(new DecimalFormat("0.0000000000").format((left+right)/2) );
	}

}
class IO {
	private final InputStream in;
	private final PrintWriter out = new PrintWriter(System.out);
	private final byte[] buffer = new byte[1024];
	private int ptr = 0;
	private int buflen = 0;

	public IO() { this(System.in);}
	public IO(InputStream source) { this.in = source;}
	private boolean hasNextByte() {
		if (ptr < buflen) {
			return true;
		}else{
			ptr = 0;
			try {
				buflen = in.read(buffer);
			} catch (IOException e) {
				e.printStackTrace();
			}
			if (buflen <= 0) {
				return false;
			}
		}
		return true;
	}
	private int readByte() { if (hasNextByte()) return buffer[ptr++]; else return -1;}
	private static boolean isPrintableChar(int c) { return 33 <= c && c <= 126;}
	private static boolean isNewLine(int c) { return c == '\n' || c == '\r';}
	private void skipUnprintable() { while(hasNextByte() && !isPrintableChar(buffer[ptr])) ptr++;}
	private void skipNewLine() { while(hasNextByte() && isNewLine(buffer[ptr])) ptr++;}
	public boolean hasNext() { skipUnprintable(); return hasNextByte();}
	public boolean hasNextLine() { skipNewLine(); return hasNextByte();}
	public String next() {
		if (!hasNext()) {
			throw new NoSuchElementException();
		}
		StringBuilder sb = new StringBuilder();
		int b = readByte();
		while(isPrintableChar(b)) {
			sb.appendCodePoint(b);
			b = readByte();
		}
		return sb.toString();
	}
	public char[] nextCharArray(int len) {
		char[] s = new char[len];
		if (!hasNext()) {
			throw new NoSuchElementException();
		}
		int i = 0;
		int b = readByte();
		while(isPrintableChar(b)) {
			if (i == len) {
				throw new InputMismatchException();
			}
			s[i++] = (char) b;
			b = readByte();
		}
		return s;
	}
	public String nextLine() {
		if (!hasNextLine()) {
			throw new NoSuchElementException();
		}
		StringBuilder sb = new StringBuilder();
		int b = readByte();
		while(!isNewLine(b)) {
			sb.appendCodePoint(b);
			b = readByte();
		}
		return sb.toString();
	}
	public long nextLong() {
		if (!hasNext()) {
			throw new NoSuchElementException();
		}
		long n = 0;
		boolean minus = false;
		int b = readByte();
		if (b == '-') {
			minus = true;
			b = readByte();
		}
		if (b < '0' || '9' < b) {
			throw new NumberFormatException();
		}
		while(true){
			if ('0' <= b && b <= '9') {
				n *= 10;
				n += b - '0';
			}else if(b == -1 || !isPrintableChar(b)){
				return minus ? -n : n;
			}else{
				throw new NumberFormatException();
			}
			b = readByte();
		}
	}
	public int nextInt() {
		long nl = nextLong();
		if (nl < Integer.MIN_VALUE || nl > Integer.MAX_VALUE) {
			throw new NumberFormatException();
		}
		return (int) nl;
	}
	public char nextChar() {
		if (!hasNext()) {
			throw new NoSuchElementException();
		}
		return (char) readByte();
	}
	public double nextDouble() { return Double.parseDouble(next());}
	public int[] arrayInt(int n) { int[] a = new int[n]; for(int i=0;i<n;i++) a[i] = nextInt(); return a;}
	public long[] arrayLong(int n) { long[] a = new long[n]; for(int i=0;i<n;i++) a[i] = nextLong(); return a;}
	public double[] arrayDouble(int n) { double[] a = new double[n]; for(int i=0;i<n;i++) a[i] = nextDouble(); return a;}
	public void arrayInt(int[]... a) {for(int i=0;i<a[0].length;i++) for(int j=0;j<a.length;j++) a[j][i] = nextInt();}
	public int[][] matrixInt(int n,int m) { int[][] a = new int[n][m]; for(int i=0;i<n;i++) a[i] = arrayInt(m); return a;}
	public char[][] charMap(int n,int m) { char[][] a = new char[n][m]; for(int i=0;i<n;i++) a[i] = nextCharArray(m); return a;}
	public void println(long x) { out.println(x);}
	public void println(double x) { out.println(x);}
	public void println(String s) { out.println(s);}
	public void println() { out.println(); }
	public void print(long x) { out.print(x); }
	public void print(double x) { out.print(x); }
	public void print(String s) { out.print(s); }
	public void print(char c) {out.print(c);}
	public void flush() {out.flush(); }
}
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