結果

問題 No.8072 Sum of sqrt(x)
ユーザー uwiuwi
提出日時 2020-09-12 18:45:20
言語 Java21
(openjdk 21)
結果
AC  
実行時間 789 ms / 2,000 ms
コード長 3,968 bytes
コンパイル時間 7,066 ms
コンパイル使用メモリ 85,536 KB
実行使用メモリ 52,148 KB
最終ジャッジ日時 2024-06-10 17:51:38
合計ジャッジ時間 135,247 ms
ジャッジサーバーID
（参考情報） 		judge1 / judge3
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 50 ms
36,916 KB
testcase_01 AC 53 ms
37,192 KB
testcase_02 AC 50 ms
37,264 KB
testcase_03 AC 49 ms
37,256 KB
testcase_04 AC 49 ms
36,828 KB
testcase_05 AC 50 ms
37,356 KB
testcase_06 AC 53 ms
37,084 KB
testcase_07 AC 604 ms
46,800 KB
testcase_08 AC 627 ms
46,776 KB
testcase_09 AC 603 ms
47,112 KB
testcase_10 AC 731 ms
46,952 KB
testcase_11 AC 757 ms
47,116 KB
testcase_12 AC 703 ms
48,796 KB
testcase_13 AC 674 ms
46,928 KB
testcase_14 AC 717 ms
47,460 KB
testcase_15 AC 722 ms
52,148 KB
testcase_16 AC 716 ms
47,096 KB
testcase_17 AC 689 ms
46,816 KB
testcase_18 AC 763 ms
47,468 KB
testcase_19 AC 737 ms
47,204 KB
testcase_20 AC 648 ms
47,588 KB
testcase_21 AC 688 ms
47,568 KB
testcase_22 AC 789 ms
47,020 KB
testcase_23 AC 732 ms
47,100 KB
testcase_24 AC 742 ms
47,180 KB
testcase_25 AC 788 ms
46,996 KB
testcase_26 AC 729 ms
47,020 KB
testcase_27 AC 633 ms
47,164 KB
testcase_28 AC 729 ms
46,948 KB
testcase_29 AC 723 ms
47,228 KB
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ソースコード

diff # 

package extra;

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

public class P3072_5 {
	InputStream is;
	PrintWriter out;
	String INPUT = "";

	void solve()
	{
		double ssum = 0;
		double asum = 0;
		for(int T = ni();T > 0;T--){
			long x = nl();
			double s = Math.sqrt(x);
			// ssum + s = ssum'
			double y = s - asum;
			double t = ssum + y;
			asum = (t-ssum) - y;
			ssum = t;
			out.println(dtos(ssum, 16));
		}
	}

	public static String dtos(double x, int n) {
		StringBuilder sb = new StringBuilder();
		if(x < 0){
			sb.append('-');
			x = -x;
		}
//		x += Math.pow(10, -n)/2;
		//		if(x < 0){ x = 0; }
		int rem = 17;
		for(long t = (long)x;t > 0;t /= 10, rem--);
		sb.append((long)x);
		sb.append(".");
		x -= (long)x;
		for(int i = 0;i < rem;i++){
			x *= 10;
			sb.append((int)x);
			x -= (int)x;
		}
		return sb.toString();
	}


	void run() throws Exception
	{
//		int n = 1000000, m = 99999;
//		Random gen = new Random();
//		StringBuilder sb = new StringBuilder();
//		sb.append(n + " ");
//		for (int i = 0; i < n; i++) {
//			sb.append(Math.abs(gen.nextLong() % 1000000000000000000L) + " ");
//		}
//		INPUT = sb.toString();

		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 P3072_5().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)); }
}
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