#477188 (Java21) No.955 ax^2+bx+c=0

提出ソース

結果

問題	No.955 ax^2+bx+c=0
ユーザー	Suunn
提出日時	2020-05-07 07:50:03
言語	Java21 (openjdk 21)
結果	WA
実行時間	-
コード長	5,827 bytes
コンパイル時間	2,762 ms
コンパイル使用メモリ	88,312 KB
実行使用メモリ	57,700 KB
最終ジャッジ日時	2023-09-16 07:44:15
合計ジャッジ時間	17,094 ms
ジャッジサーバーID （参考情報）	judge12 / judge13

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	WA	-
testcase_01	WA	-
testcase_02	AC	42 ms 49,452 KB
testcase_03	WA	-
testcase_04	AC	42 ms 49,284 KB
testcase_05	AC	43 ms 49,464 KB
testcase_06	AC	42 ms 49,456 KB
testcase_07	AC	42 ms 49,420 KB
testcase_08	AC	42 ms 49,468 KB
testcase_09	AC	43 ms 49,868 KB
testcase_10	AC	43 ms 49,464 KB
testcase_11	AC	43 ms 49,896 KB
testcase_12	AC	42 ms 49,476 KB
testcase_13	AC	42 ms 49,416 KB
testcase_14	WA	-
testcase_15	WA	-
testcase_16	WA	-
testcase_17	WA	-
testcase_18	WA	-
testcase_19	WA	-
testcase_20	WA	-
testcase_21	WA	-
testcase_22	WA	-
testcase_23	WA	-
testcase_24	WA	-
testcase_25	WA	-
testcase_26	WA	-
testcase_27	WA	-
testcase_28	WA	-
testcase_29	WA	-
testcase_30	WA	-
testcase_31	WA	-
testcase_32	WA	-
testcase_33	WA	-
testcase_34	WA	-
testcase_35	WA	-
testcase_36	WA	-
testcase_37	WA	-
testcase_38	WA	-
testcase_39	WA	-
testcase_40	WA	-
testcase_41	WA	-
testcase_42	WA	-
testcase_43	WA	-
testcase_44	WA	-
testcase_45	WA	-
testcase_46	WA	-
testcase_47	WA	-
testcase_48	WA	-
testcase_49	WA	-
testcase_50	WA	-
testcase_51	WA	-
testcase_52	WA	-
testcase_53	WA	-
testcase_54	WA	-
testcase_55	WA	-
testcase_56	WA	-
testcase_57	WA	-
testcase_58	WA	-
testcase_59	WA	-
testcase_60	AC	42 ms 49,520 KB
testcase_61	AC	42 ms 49,536 KB
testcase_62	WA	-
testcase_63	WA	-
testcase_64	AC	42 ms 49,472 KB
testcase_65	WA	-
testcase_66	AC	42 ms 49,512 KB
testcase_67	WA	-
testcase_68	AC	41 ms 49,352 KB
testcase_69	WA	-
testcase_70	WA	-
testcase_71	AC	43 ms 49,452 KB
testcase_72	AC	42 ms 49,476 KB
testcase_73	WA	-
testcase_74	WA	-
testcase_75	AC	43 ms 49,656 KB
testcase_76	AC	43 ms 49,924 KB
testcase_77	WA	-
testcase_78	WA	-
testcase_79	WA	-
testcase_80	AC	43 ms 49,416 KB
testcase_81	WA	-
testcase_82	WA	-
testcase_83	WA	-
testcase_84	WA	-
testcase_85	WA	-
testcase_86	WA	-
testcase_87	WA	-
testcase_88	WA	-
testcase_89	WA	-
testcase_90	WA	-
testcase_91	WA	-
testcase_92	AC	43 ms 47,320 KB
testcase_93	AC	43 ms 51,464 KB
testcase_94	WA	-
testcase_95	WA	-
testcase_96	WA	-
testcase_97	WA	-
testcase_98	WA	-
testcase_99	WA	-
testcase_100	AC	43 ms 49,316 KB
testcase_101	WA	-
testcase_102	WA	-
testcase_103	WA	-
testcase_104	WA	-
testcase_105	WA	-
testcase_106	WA	-
testcase_107	WA	-
testcase_108	WA	-
testcase_109	WA	-
testcase_110	WA	-
testcase_111	WA	-
testcase_112	WA	-
testcase_113	WA	-
testcase_114	WA	-
testcase_115	WA	-
testcase_116	WA	-
testcase_117	WA	-
testcase_118	WA	-
testcase_119	WA	-
testcase_120	WA	-
testcase_121	WA	-
testcase_122	WA	-
testcase_123	WA	-
testcase_124	WA	-

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ソースコード

raw source code

import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.ArrayDeque;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.NoSuchElementException;
import java.util.Queue;
import java.util.Scanner;
import java.util.TreeMap;
import java.util.TreeSet;

public class Main {
	static MLScanner sc = new MLScanner(System.in);
	static PrintWriter ot = new PrintWriter(System.out);
	static String sp = " ";
	public static void main(String[] args) {
		
		int T = 1;
		for(int i=0;i<T;i++) {
			long A = sc.nextLong();
			long B = sc.nextLong();
			long C = sc.nextLong();
			double a = A;
			double b = B;
			double c = C;
			if(A==0&&B==0) {
				if(C==0)ot.println(3);
				else ot.println(0);
			}else if(A==0) {
				ot.println(1+sp+(-c/b));
			}else {
				if(B<0) {
					A *= -1;
					B *= -1;
					C *= -1;
					a *= -1;
					b *= -1;
					c *= -1;
				}
				long D = B*B-4*A*C;
				if(D<0) ot.println(0);
				else if(D==0)ot.println(1+sp+(-b/(2*a)));
				else {
					double ans1 = -(b+Math.sqrt(D))/(2*a);
					double ans2 = -(B*B-D)/(2*a*(b+Math.sqrt(D)));
					if(ans1>ans2) {
						double tmp = ans1;
						ans1 = ans2;
						ans2 = tmp;
					}
					ot.printf("%d%s%.10f%s%.10f",2,sp,ans1,sp,ans2);
					ot.println();
				}
			}
		}
		ot.flush();
	}
}

class MLScanner {
	  private static final int BUFFER_SIZE = 1024;
	  
	  private final InputStream stream;
	  private final byte[] buffer;
	  private int pointer;
	  private int bufferLength;
	  
	  MLScanner(InputStream stream) {
	    this.stream = stream;
	    this.buffer = new byte[BUFFER_SIZE];
	    this.pointer = 0;
	    this.bufferLength = 0;
	  }
	  
	  private boolean hasNextByte() {
	    if (pointer < bufferLength) {
	      return true;
	    }
	    
	    pointer = 0;
	    try {
	      bufferLength = stream.read(buffer);
	    } catch (IOException e) {
	      throw new RuntimeException(e);
	    }
	    return bufferLength > 0;
	  }
	  
	  private int readByte() {
	    if (hasNextByte()) {
	      return buffer[pointer++];
	    } else {
	      return -1;
	    }
	  }
	  
	  private static boolean isPrintableChar(int c) {
	    return 33 <= c && c <= 126;
	  }
	  
	  public boolean hasNext() {
	    while (hasNextByte() && !isPrintableChar(buffer[pointer])) {
	      pointer++;
	    }
	    return hasNextByte();
	  }
	  
	  public String next() {
	    if (!hasNext()) {
	      throw new NoSuchElementException();
	    }
	    StringBuilder sb = new StringBuilder();
	    while(true) {
	      int b = readByte();
	      if (!isPrintableChar(b)) {
	        break;
	      }
	      sb.appendCodePoint(b);
	    }
	    return sb.toString();
	  }
	  
	  public char nextChar() {
	    return next().charAt(0);
	  }
	  
	  public int nextInt() {
	    long nl = nextLong();
	    if (nl < Integer.MIN_VALUE || Integer.MAX_VALUE < nl) {
	      throw new NumberFormatException();
	    }
	    return (int) nl;
	  }
	  
	  public long nextLong() {
	    if (!hasNext()) {
	      throw new NoSuchElementException();
	    }
	    
	    long n = 0;
	    boolean minus = false;
	    
	    {
	      int b = readByte();
	      if (b == '-') {
	        minus = true;
	      } else if ('0' <= b && b <= '9') {
	        n = b - '0';
	      } else {
	        throw new NumberFormatException();
	      }
	    }
	    
	    while(true){
	      int b = readByte();
	      if ('0' <= b && b <= '9') {
	        n *= 10;
	        n += b - '0';
	      } else if (b == -1 || !isPrintableChar(b)) {
	        return minus ? -n : n;
	      } else {
	        throw new NumberFormatException();
	      }
	    }
	  }
	  
	  public double nextDouble() {
	    return Double.parseDouble(next());
	  }
	  
	  public String[] next(int n) {
	    String[] array = new String[n];
	    for (int i = 0; i < n; i++) {
	      array[i] = next();
	    }
	    return array;
	  }
	  
	  public char[] nextChar(int n) {
	    char[] array = new char[n];
	    for (int i = 0; i < n; i++) {
	      array[i] = nextChar();
	    }
	    return array;
	  }
	  
	  public int[] nextInt(int n) {
	    int[] array = new int[n];
	    for (int i = 0; i < n; i++) {
	      array[i] = nextInt();
	    }
	    return array;
	  }
	  
	  public long[] nextLong(int n) {
	    long[] array = new long[n];
	    for (int i = 0; i < n; i++) {
	      array[i] = nextLong();
	    }
	    return array;
	  }
	  
	  public double[] nextDouble(int n) {
	    double[] array = new double[n];
	    for (int i = 0; i < n; i++) {
	      array[i] = nextDouble();
	    }
	    return array;
	  }
	  
	  public char[] nextCharArray() {
	    return next().toCharArray();
	  }
	  
	  public int[][] nextInt(int n, int m) {
	    int[][] matrix = new int[n][m];
	    for (int i = 0; i < n; i++) {
	      for (int j = 0; j < m; j++) {
	        matrix[i][j] = nextInt();
	      }
	    }
	    return matrix;
	  }
	  
	  public char[][] nextChar(int n, int m) {
	    char[][] matrix = new char[n][m];
	    for (int i = 0; i < n; i++) {
	      for (int j = 0; j < m; j++) {
	        matrix[i][j] = nextChar();
	      }
	    }
	    return matrix;
	  }
	  
	  public long[][] nextLong(int n, int m) {
	    long[][] matrix = new long[n][m];
	    for (int i = 0; i < n; i++) {
	      for (int j = 0; j < m; j++) {
	        matrix[i][j] = nextLong();
	      }
	    }
	    return matrix;
	  }
	  
	  public double[][] nextDouble(int n, int m) {
	    double[][] matrix = new double[n][m];
	    for (int i = 0; i < n; i++) {
	      for (int j = 0; j < m; j++) {
	        matrix[i][j] = nextDouble();
	      }
	    }
	    return matrix;
	  }
	  
	  public char[][] nextCharArray(int n) {
	    char[][] matrix = new char[n][];
	    for (int i = 0; i < n; i++) {
	      matrix[i] = next().toCharArray();
	    }
	    return matrix;
	  }
	}

yukicoder

結果

テストケース

ソースコード