結果
問題 | No.955 ax^2+bx+c=0 |
ユーザー | uwi |
提出日時 | 2019-12-18 14:38:49 |
言語 | Java21 (openjdk 21) |
結果 |
TLE
|
実行時間 | - |
コード長 | 4,955 bytes |
コンパイル時間 | 4,214 ms |
コンパイル使用メモリ | 81,240 KB |
実行使用メモリ | 59,256 KB |
最終ジャッジ日時 | 2024-07-07 00:44:07 |
合計ジャッジ時間 | 12,071 ms |
ジャッジサーバーID (参考情報) |
judge2 / judge1 |
(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 | 125 ms
46,812 KB |
testcase_01 | AC | 124 ms
41,172 KB |
testcase_02 | AC | 53 ms
37,056 KB |
testcase_03 | AC | 53 ms
36,764 KB |
testcase_04 | AC | 53 ms
36,852 KB |
testcase_05 | AC | 52 ms
36,884 KB |
testcase_06 | AC | 55 ms
36,952 KB |
testcase_07 | AC | 55 ms
36,904 KB |
testcase_08 | AC | 54 ms
36,664 KB |
testcase_09 | AC | 55 ms
36,872 KB |
testcase_10 | AC | 53 ms
36,980 KB |
testcase_11 | AC | 54 ms
37,076 KB |
testcase_12 | AC | 53 ms
36,992 KB |
testcase_13 | AC | 55 ms
36,992 KB |
testcase_14 | AC | 113 ms
39,620 KB |
testcase_15 | AC | 112 ms
39,824 KB |
testcase_16 | AC | 126 ms
41,040 KB |
testcase_17 | AC | 126 ms
41,300 KB |
testcase_18 | AC | 113 ms
39,624 KB |
testcase_19 | AC | 112 ms
40,040 KB |
testcase_20 | AC | 112 ms
39,792 KB |
testcase_21 | AC | 111 ms
39,932 KB |
testcase_22 | AC | 113 ms
39,840 KB |
testcase_23 | AC | 126 ms
40,820 KB |
testcase_24 | AC | 123 ms
41,108 KB |
testcase_25 | AC | 123 ms
40,916 KB |
testcase_26 | AC | 123 ms
40,924 KB |
testcase_27 | AC | 123 ms
40,916 KB |
testcase_28 | AC | 111 ms
40,120 KB |
testcase_29 | AC | 111 ms
39,944 KB |
testcase_30 | AC | 113 ms
39,620 KB |
testcase_31 | AC | 125 ms
41,164 KB |
testcase_32 | AC | 124 ms
41,076 KB |
testcase_33 | AC | 122 ms
40,888 KB |
testcase_34 | TLE | - |
testcase_35 | -- | - |
testcase_36 | -- | - |
testcase_37 | -- | - |
testcase_38 | -- | - |
testcase_39 | -- | - |
testcase_40 | -- | - |
testcase_41 | -- | - |
testcase_42 | -- | - |
testcase_43 | -- | - |
testcase_44 | -- | - |
testcase_45 | -- | - |
testcase_46 | -- | - |
testcase_47 | -- | - |
testcase_48 | -- | - |
testcase_49 | -- | - |
testcase_50 | -- | - |
testcase_51 | -- | - |
testcase_52 | -- | - |
testcase_53 | -- | - |
testcase_54 | -- | - |
testcase_55 | -- | - |
testcase_56 | -- | - |
testcase_57 | -- | - |
testcase_58 | -- | - |
testcase_59 | -- | - |
testcase_60 | -- | - |
testcase_61 | -- | - |
testcase_62 | -- | - |
testcase_63 | -- | - |
testcase_64 | -- | - |
testcase_65 | -- | - |
testcase_66 | -- | - |
testcase_67 | -- | - |
testcase_68 | -- | - |
testcase_69 | -- | - |
testcase_70 | -- | - |
testcase_71 | -- | - |
testcase_72 | -- | - |
testcase_73 | -- | - |
testcase_74 | -- | - |
testcase_75 | -- | - |
testcase_76 | -- | - |
testcase_77 | -- | - |
testcase_78 | -- | - |
testcase_79 | -- | - |
testcase_80 | -- | - |
testcase_81 | -- | - |
testcase_82 | -- | - |
testcase_83 | -- | - |
testcase_84 | -- | - |
testcase_85 | -- | - |
testcase_86 | -- | - |
testcase_87 | -- | - |
testcase_88 | -- | - |
testcase_89 | -- | - |
testcase_90 | -- | - |
testcase_91 | -- | - |
testcase_92 | -- | - |
testcase_93 | -- | - |
testcase_94 | -- | - |
testcase_95 | -- | - |
testcase_96 | -- | - |
testcase_97 | -- | - |
testcase_98 | -- | - |
testcase_99 | -- | - |
testcase_100 | -- | - |
testcase_101 | -- | - |
testcase_102 | -- | - |
testcase_103 | -- | - |
testcase_104 | -- | - |
testcase_105 | -- | - |
testcase_106 | -- | - |
testcase_107 | -- | - |
testcase_108 | -- | - |
testcase_109 | -- | - |
testcase_110 | -- | - |
testcase_111 | -- | - |
testcase_112 | -- | - |
testcase_113 | -- | - |
testcase_114 | -- | - |
testcase_115 | -- | - |
testcase_116 | -- | - |
testcase_117 | -- | - |
testcase_118 | -- | - |
testcase_119 | -- | - |
testcase_120 | -- | - |
testcase_121 | -- | - |
testcase_122 | -- | - |
testcase_123 | -- | - |
testcase_124 | -- | - |
ソースコード
package adv2019; 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 D17 { InputStream is; PrintWriter out; String INPUT = ""; void solve() { long a = nl(), b = nl(), c = nl(); long[][] res = solveQuad(a, b, c); if(res == null){ out.println(-1); }else{ out.println(res.length); for(long[] u : res){ out.printf("%.14f\n", (u[0] + u[1] * Math.sqrt(u[2])) / u[3]); } } } public static long[][] solveQuad(long A, long B, long C) { if(A == 0){ if(B == 0){ return C == 0 ? null : new long[0][]; }else{ return new long[][]{reducex(new long[]{-C, 0, 0, B})}; } } long D = B*B-4*A*C; if(D < 0){ return new long[0][]; }else if(D == 0){ return new long[][]{reducex(new long[]{-B, 0, 0, 2L*A})}; }else{ if(A > 0){ return new long[][]{ reducex(new long[]{-B, -1, D, 2L*A}), reducex(new long[]{-B, 1, D, 2L*A}) }; }else{ return new long[][]{ reducex(new long[]{-B, 1, D, 2L*A}), reducex(new long[]{-B, -1, D, 2L*A}) }; } } } public static long[] reducex(long[] f) { // f[2] < 0 ?? if(f[2] == 0)f[1] = 0; if(f[1] == 0)f[2] = 0; if(f[2] == 0 || f[1] == 0){ // normal fraction if(f[3] == 0) { // n/0 f[0] = 1; }else if(f[0] == 0) { // 0/n f[3] = 1; }else { if(f[3] < 0) { // -a/-b ->a/b f[0] = -f[0]; f[3] = -f[3]; } long a = Math.abs(f[0]), b = f[3]; while (b > 0) { long c = a; a = b; b = c % b; } f[0] /= a; f[3] /= a; } }else{ for(long p = 2;p * p <= f[2];p++){ while(f[2] % (p*p) == 0){ f[1] *= p; f[2] /= p*p; } } if(f[3] == 0) { // n/0 f[0] = 1; f[1] = f[2] = 0; }else { if(f[3] < 0) { // -a/-b ->a/b f[0] = -f[0]; f[1] = -f[1]; f[3] = -f[3]; } long a = Math.abs(f[0]), b = f[3]; while (b > 0) { long c = a; a = b; b = c % b; } b = Math.abs(f[1]); while (b > 0) { long c = a; a = b; b = c % b; } f[0] /= a; f[1] /= a; f[3] /= a; } } return f; } void run() throws Exception { 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 D17().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)); } }