結果
問題 | No.955 ax^2+bx+c=0 |
ユーザー | k_6101 |
提出日時 | 2019-12-21 16:17:57 |
言語 | Java19 (openjdk 21) |
結果 |
WA
(最新)
AC
(最初)
|
実行時間 | - |
コード長 | 3,208 bytes |
コンパイル時間 | 3,087 ms |
コンパイル使用メモリ | 95,020 KB |
実行使用メモリ | 58,064 KB |
最終ジャッジ日時 | 2023-10-19 02:17:45 |
合計ジャッジ時間 | 22,908 ms |
ジャッジサーバーID (参考情報) |
judge14 / judge11 |
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 | 137 ms
58,028 KB |
testcase_01 | AC | 134 ms
57,864 KB |
testcase_02 | AC | 135 ms
57,268 KB |
testcase_03 | AC | 132 ms
57,380 KB |
testcase_04 | AC | 133 ms
57,608 KB |
testcase_05 | AC | 130 ms
57,212 KB |
testcase_06 | AC | 132 ms
57,608 KB |
testcase_07 | AC | 132 ms
57,688 KB |
testcase_08 | AC | 131 ms
57,648 KB |
testcase_09 | AC | 135 ms
57,264 KB |
testcase_10 | AC | 135 ms
57,332 KB |
testcase_11 | AC | 134 ms
57,220 KB |
testcase_12 | AC | 135 ms
57,604 KB |
testcase_13 | AC | 132 ms
57,384 KB |
testcase_14 | AC | 138 ms
57,292 KB |
testcase_15 | AC | 137 ms
57,636 KB |
testcase_16 | AC | 133 ms
57,096 KB |
testcase_17 | AC | 133 ms
57,396 KB |
testcase_18 | AC | 134 ms
57,680 KB |
testcase_19 | AC | 132 ms
57,644 KB |
testcase_20 | AC | 134 ms
57,100 KB |
testcase_21 | AC | 133 ms
57,696 KB |
testcase_22 | AC | 137 ms
57,108 KB |
testcase_23 | AC | 136 ms
57,312 KB |
testcase_24 | AC | 136 ms
57,700 KB |
testcase_25 | AC | 135 ms
57,204 KB |
testcase_26 | AC | 132 ms
57,724 KB |
testcase_27 | AC | 131 ms
57,716 KB |
testcase_28 | AC | 136 ms
57,652 KB |
testcase_29 | AC | 132 ms
57,576 KB |
testcase_30 | AC | 136 ms
57,196 KB |
testcase_31 | AC | 138 ms
57,264 KB |
testcase_32 | AC | 137 ms
57,204 KB |
testcase_33 | AC | 134 ms
57,072 KB |
testcase_34 | AC | 141 ms
57,832 KB |
testcase_35 | AC | 142 ms
55,976 KB |
testcase_36 | AC | 142 ms
57,952 KB |
testcase_37 | AC | 140 ms
58,000 KB |
testcase_38 | AC | 146 ms
57,640 KB |
testcase_39 | AC | 145 ms
55,572 KB |
testcase_40 | AC | 144 ms
57,644 KB |
testcase_41 | AC | 142 ms
57,948 KB |
testcase_42 | AC | 143 ms
57,992 KB |
testcase_43 | AC | 142 ms
58,064 KB |
testcase_44 | AC | 145 ms
57,980 KB |
testcase_45 | AC | 143 ms
57,640 KB |
testcase_46 | AC | 140 ms
57,540 KB |
testcase_47 | AC | 142 ms
57,668 KB |
testcase_48 | AC | 140 ms
57,680 KB |
testcase_49 | AC | 144 ms
57,940 KB |
testcase_50 | AC | 145 ms
57,820 KB |
testcase_51 | AC | 145 ms
57,556 KB |
testcase_52 | AC | 141 ms
58,032 KB |
testcase_53 | AC | 143 ms
57,784 KB |
testcase_54 | AC | 140 ms
57,992 KB |
testcase_55 | AC | 144 ms
57,808 KB |
testcase_56 | AC | 143 ms
57,588 KB |
testcase_57 | AC | 141 ms
57,944 KB |
testcase_58 | AC | 150 ms
57,592 KB |
testcase_59 | AC | 150 ms
58,016 KB |
testcase_60 | AC | 132 ms
57,620 KB |
testcase_61 | AC | 135 ms
57,488 KB |
testcase_62 | AC | 142 ms
57,984 KB |
testcase_63 | AC | 143 ms
57,552 KB |
testcase_64 | AC | 133 ms
57,376 KB |
testcase_65 | AC | 141 ms
57,948 KB |
testcase_66 | AC | 133 ms
55,644 KB |
testcase_67 | AC | 143 ms
57,980 KB |
testcase_68 | AC | 137 ms
57,656 KB |
testcase_69 | AC | 145 ms
57,952 KB |
testcase_70 | AC | 140 ms
57,960 KB |
testcase_71 | AC | 133 ms
57,224 KB |
testcase_72 | AC | 133 ms
57,224 KB |
testcase_73 | AC | 142 ms
57,980 KB |
testcase_74 | AC | 145 ms
57,764 KB |
testcase_75 | AC | 139 ms
57,208 KB |
testcase_76 | AC | 135 ms
57,248 KB |
testcase_77 | AC | 142 ms
58,004 KB |
testcase_78 | AC | 144 ms
57,984 KB |
testcase_79 | AC | 140 ms
57,764 KB |
testcase_80 | AC | 129 ms
57,224 KB |
testcase_81 | AC | 143 ms
57,532 KB |
testcase_82 | AC | 134 ms
57,724 KB |
testcase_83 | AC | 135 ms
57,304 KB |
testcase_84 | AC | 137 ms
57,700 KB |
testcase_85 | AC | 137 ms
57,628 KB |
testcase_86 | AC | 137 ms
57,768 KB |
testcase_87 | AC | 133 ms
57,436 KB |
testcase_88 | AC | 136 ms
57,068 KB |
testcase_89 | AC | 135 ms
57,200 KB |
testcase_90 | AC | 137 ms
57,248 KB |
testcase_91 | AC | 134 ms
57,628 KB |
testcase_92 | AC | 134 ms
57,640 KB |
testcase_93 | AC | 130 ms
57,624 KB |
testcase_94 | AC | 136 ms
57,780 KB |
testcase_95 | AC | 137 ms
57,480 KB |
testcase_96 | AC | 139 ms
57,744 KB |
testcase_97 | AC | 133 ms
57,324 KB |
testcase_98 | AC | 137 ms
57,468 KB |
testcase_99 | AC | 134 ms
57,676 KB |
testcase_100 | AC | 134 ms
57,252 KB |
testcase_101 | AC | 133 ms
57,424 KB |
testcase_102 | AC | 135 ms
57,332 KB |
testcase_103 | AC | 133 ms
57,528 KB |
testcase_104 | AC | 133 ms
57,328 KB |
testcase_105 | AC | 134 ms
57,484 KB |
testcase_106 | AC | 133 ms
57,256 KB |
testcase_107 | AC | 137 ms
57,696 KB |
testcase_108 | AC | 137 ms
57,256 KB |
testcase_109 | AC | 137 ms
57,364 KB |
testcase_110 | AC | 135 ms
57,684 KB |
testcase_111 | AC | 135 ms
57,124 KB |
testcase_112 | AC | 133 ms
57,704 KB |
testcase_113 | AC | 136 ms
57,256 KB |
testcase_114 | AC | 137 ms
57,116 KB |
testcase_115 | AC | 134 ms
57,660 KB |
testcase_116 | AC | 135 ms
57,688 KB |
testcase_117 | AC | 133 ms
57,120 KB |
testcase_118 | AC | 135 ms
57,716 KB |
testcase_119 | AC | 133 ms
57,660 KB |
testcase_120 | AC | 138 ms
57,304 KB |
testcase_121 | AC | 136 ms
57,700 KB |
testcase_122 | AC | 140 ms
57,704 KB |
testcase_123 | AC | 133 ms
57,304 KB |
testcase_124 | WA | - |
ソースコード
import java.io.InputStream; import java.io.PrintWriter; import java.lang.reflect.Array; import java.math.BigDecimal; import java.math.MathContext; import java.util.ArrayDeque; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.Comparator; import java.util.HashMap; import java.util.HashSet; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Map.Entry; import java.util.PriorityQueue; import java.util.Queue; import java.util.Scanner; import java.util.Set; import java.util.Stack; import java.util.TreeMap; import java.util.TreeSet; import static java.util.Comparator.*; public class Main { public static void main(String[] args) { PrintWriter out = new PrintWriter(System.out); Solver solver = new Solver(System.in, out); solver.solve(); out.close(); } } class Solver { Scanner sc; PrintWriter out; public Solver(InputStream in, PrintWriter out) { sc = new Scanner(in); this.out = out; } // ================================================================== public void solve() { long A = Long.parseLong(sc.next()); long B = Long.parseLong(sc.next()); long C = Long.parseLong(sc.next()); if(A == 0 && B == 0) { if(C == 0) out.println(-1); else out.println(0); } else if(A == 0) { out.println(1); out.println(String.format("%.14f", (double)C * -1 /B)); } else if(B == 0) { if(C == 0) { out.println(1); out.println(0); } else if((long)A * C < 0) { out.println(0); } else { double X = Math.sqrt((double)C*-1/A); out.println(2); out.println("-" + String.format("%.14f", X)); out.println(String.format("%.14f", X)); } } else if(C == 0) { out.println(2); if(B > 0) { out.println(String.format("%.14f", (double)B * -1 / A)); out.println(0); } else { out.println(0); out.println(String.format("%.14f", (double)B * -1 / A)); } } else if((B*B - 4*A*C) < 0) { out.println(0); } else { if((B*B - 4*A*C) == 0) { out.println(1); out.println(String.format("%.14f", ((double)B * -1) / A / 2)); } else { BigDecimal wk = sqrt(B*B - 4*A*C); out.println(2); if(A > 0) { out.println(String.format("%.14f", (new BigDecimal(B).negate().subtract(wk).divide(new BigDecimal(A*2),14,BigDecimal.ROUND_UP)))); out.println(String.format("%.14f", (new BigDecimal(B).negate().add(wk).divide(new BigDecimal(A*2),14,BigDecimal.ROUND_UP)))); } else { out.println(String.format("%.14f", (new BigDecimal(B).negate().add(wk).divide(new BigDecimal(A*2),14,BigDecimal.ROUND_UP)))); out.println(String.format("%.14f", (new BigDecimal(B).negate().subtract(wk).divide(new BigDecimal(A*2),14,BigDecimal.ROUND_UP)))); } } } } BigDecimal sqrt(long a) { MathContext cx = new MathContext(20); BigDecimal cur = BigDecimal.ONE; // (x+a/x)/2 for(int rep = 0;rep < 50;rep++){ cur = cur.add(BigDecimal.valueOf(a).divide(cur, cx)).divide(BigDecimal.valueOf(2), cx); } return cur; } }