結果
問題 | No.955 ax^2+bx+c=0 |
ユーザー | 37zigen |
提出日時 | 2019-12-18 00:50:35 |
言語 | Java21 (openjdk 21) |
結果 |
WA
|
実行時間 | - |
コード長 | 1,851 bytes |
コンパイル時間 | 1,951 ms |
コンパイル使用メモリ | 79,340 KB |
実行使用メモリ | 56,168 KB |
最終ジャッジ日時 | 2024-07-07 00:02:56 |
合計ジャッジ時間 | 18,216 ms |
ジャッジサーバーID (参考情報) |
judge5 / judge2 |
(要ログイン)
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 | 100 ms
53,100 KB |
testcase_01 | AC | 110 ms
54,224 KB |
testcase_02 | AC | 112 ms
54,080 KB |
testcase_03 | AC | 108 ms
54,008 KB |
testcase_04 | AC | 97 ms
53,200 KB |
testcase_05 | AC | 104 ms
53,924 KB |
testcase_06 | AC | 107 ms
54,184 KB |
testcase_07 | AC | 110 ms
53,940 KB |
testcase_08 | AC | 104 ms
53,832 KB |
testcase_09 | AC | 111 ms
54,192 KB |
testcase_10 | AC | 108 ms
54,012 KB |
testcase_11 | AC | 106 ms
53,916 KB |
testcase_12 | AC | 97 ms
54,400 KB |
testcase_13 | AC | 109 ms
54,080 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 | AC | 107 ms
53,860 KB |
testcase_25 | AC | 99 ms
53,324 KB |
testcase_26 | AC | 111 ms
54,224 KB |
testcase_27 | AC | 110 ms
53,964 KB |
testcase_28 | AC | 103 ms
53,908 KB |
testcase_29 | AC | 107 ms
54,184 KB |
testcase_30 | AC | 96 ms
53,208 KB |
testcase_31 | AC | 95 ms
52,960 KB |
testcase_32 | AC | 112 ms
54,216 KB |
testcase_33 | AC | 111 ms
54,288 KB |
testcase_34 | AC | 112 ms
54,304 KB |
testcase_35 | AC | 109 ms
54,204 KB |
testcase_36 | AC | 109 ms
54,196 KB |
testcase_37 | AC | 112 ms
53,936 KB |
testcase_38 | AC | 110 ms
54,288 KB |
testcase_39 | AC | 100 ms
52,988 KB |
testcase_40 | AC | 105 ms
53,148 KB |
testcase_41 | AC | 113 ms
54,072 KB |
testcase_42 | AC | 113 ms
54,128 KB |
testcase_43 | AC | 110 ms
54,152 KB |
testcase_44 | AC | 110 ms
54,336 KB |
testcase_45 | AC | 109 ms
54,148 KB |
testcase_46 | AC | 110 ms
54,192 KB |
testcase_47 | AC | 101 ms
53,208 KB |
testcase_48 | AC | 110 ms
54,284 KB |
testcase_49 | AC | 107 ms
54,460 KB |
testcase_50 | AC | 110 ms
54,304 KB |
testcase_51 | AC | 115 ms
54,260 KB |
testcase_52 | AC | 113 ms
54,024 KB |
testcase_53 | AC | 106 ms
53,268 KB |
testcase_54 | AC | 97 ms
53,084 KB |
testcase_55 | AC | 108 ms
53,908 KB |
testcase_56 | AC | 113 ms
54,308 KB |
testcase_57 | AC | 109 ms
54,004 KB |
testcase_58 | RE | - |
testcase_59 | RE | - |
testcase_60 | AC | 97 ms
52,684 KB |
testcase_61 | AC | 106 ms
54,296 KB |
testcase_62 | RE | - |
testcase_63 | RE | - |
testcase_64 | AC | 110 ms
54,360 KB |
testcase_65 | RE | - |
testcase_66 | AC | 97 ms
53,124 KB |
testcase_67 | RE | - |
testcase_68 | AC | 97 ms
53,140 KB |
testcase_69 | RE | - |
testcase_70 | RE | - |
testcase_71 | AC | 103 ms
54,084 KB |
testcase_72 | AC | 94 ms
52,880 KB |
testcase_73 | RE | - |
testcase_74 | RE | - |
testcase_75 | AC | 108 ms
54,016 KB |
testcase_76 | AC | 107 ms
54,028 KB |
testcase_77 | RE | - |
testcase_78 | RE | - |
testcase_79 | RE | - |
testcase_80 | AC | 108 ms
53,932 KB |
testcase_81 | RE | - |
testcase_82 | AC | 108 ms
54,024 KB |
testcase_83 | AC | 107 ms
54,152 KB |
testcase_84 | AC | 107 ms
54,200 KB |
testcase_85 | AC | 110 ms
54,320 KB |
testcase_86 | AC | 97 ms
53,288 KB |
testcase_87 | AC | 103 ms
54,032 KB |
testcase_88 | AC | 103 ms
54,172 KB |
testcase_89 | AC | 107 ms
53,964 KB |
testcase_90 | AC | 109 ms
54,124 KB |
testcase_91 | AC | 105 ms
54,244 KB |
testcase_92 | AC | 104 ms
54,144 KB |
testcase_93 | AC | 105 ms
54,012 KB |
testcase_94 | AC | 108 ms
54,272 KB |
testcase_95 | AC | 110 ms
54,244 KB |
testcase_96 | AC | 110 ms
52,980 KB |
testcase_97 | AC | 113 ms
54,148 KB |
testcase_98 | AC | 112 ms
53,912 KB |
testcase_99 | AC | 106 ms
54,204 KB |
testcase_100 | AC | 99 ms
53,032 KB |
testcase_101 | AC | 95 ms
52,704 KB |
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 | AC | 110 ms
54,148 KB |
testcase_123 | AC | 109 ms
53,844 KB |
testcase_124 | AC | 111 ms
54,432 KB |
ソースコード
import java.math.BigDecimal; import java.math.MathContext; import java.util.*; import java.io.*; import java.math.*; class Main { public static void main(String[] args) { new Main().run(); } void run() { Scanner sc = new Scanner(System.in); long a = sc.nextLong(); long b = sc.nextLong(); long c = sc.nextLong(); if (a < 0) { a *= -1; b *= -1; c *= -1; } if (a == 0 && b == 0 && c == 0) {// 0x^2+0x+0=0 System.out.println(-1); return; } else if (a == 0 && b == 0 && c != 0) {// 0x^2+0x+c=0 System.out.println(0); } else if (a == 0) {// 0x^2+bx+0=0 System.out.println(1); System.out.println((double) c / a); } else if (a != 0) { long DD = b * b - 4 * a * c; if (DD < 0) { System.out.println(0); } else if (DD == 0) { System.out.println(1); System.out.println((double) (-b) / (2 * a)); } else { System.out.println(2); System.out.println( BigDecimal.valueOf(-b).subtract(sqrt(new BigDecimal(DD), 50)).divide(BigDecimal.valueOf(2 * a)));// (double)(-b+Math.sqrt(DD))/(2*a)); System.out.println( BigDecimal.valueOf(-b).add(sqrt(new BigDecimal(DD), 50)).divide(BigDecimal.valueOf(2 * a)));// (double)(-b+Math.sqrt(DD))/(2*a)); } } // BigDecimal s2_50 = sqrt(new BigDecimal(2), 50); // System.out.println(s2_50); // System.out.println(s2_50.multiply(s2_50)); } public static BigDecimal sqrt(BigDecimal a, int scale) { // とりあえずdoubleのsqrtを求める BigDecimal x = new BigDecimal(Math.sqrt(a.doubleValue()), MathContext.DECIMAL64); if (scale < 17) return x; BigDecimal b2 = new BigDecimal(2); for (int tempScale = 16; tempScale < scale; tempScale *= 2) { // x = x - (x * x - a) / (2 * x); x = x.subtract(x.multiply(x).subtract(a).divide(x.multiply(b2), scale, BigDecimal.ROUND_HALF_EVEN)); } return x; } }