結果
問題 | No.622 点と三角柱の内外判定 |
ユーザー | Grenache |
提出日時 | 2018-01-06 14:57:35 |
言語 | Java21 (openjdk 21) |
結果 |
AC
|
実行時間 | 127 ms / 1,500 ms |
コード長 | 2,178 bytes |
コンパイル時間 | 3,275 ms |
コンパイル使用メモリ | 78,036 KB |
実行使用メモリ | 41,624 KB |
最終ジャッジ日時 | 2024-06-02 11:27:12 |
合計ジャッジ時間 | 8,388 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 | 121 ms
40,120 KB |
testcase_01 | AC | 118 ms
41,316 KB |
testcase_02 | AC | 124 ms
41,236 KB |
testcase_03 | AC | 121 ms
41,352 KB |
testcase_04 | AC | 116 ms
40,996 KB |
testcase_05 | AC | 118 ms
41,236 KB |
testcase_06 | AC | 125 ms
41,304 KB |
testcase_07 | AC | 126 ms
41,556 KB |
testcase_08 | AC | 117 ms
41,136 KB |
testcase_09 | AC | 122 ms
41,108 KB |
testcase_10 | AC | 123 ms
41,344 KB |
testcase_11 | AC | 124 ms
41,088 KB |
testcase_12 | AC | 123 ms
41,312 KB |
testcase_13 | AC | 123 ms
40,248 KB |
testcase_14 | AC | 109 ms
40,180 KB |
testcase_15 | AC | 124 ms
41,276 KB |
testcase_16 | AC | 120 ms
40,128 KB |
testcase_17 | AC | 124 ms
41,472 KB |
testcase_18 | AC | 110 ms
40,484 KB |
testcase_19 | AC | 123 ms
41,320 KB |
testcase_20 | AC | 109 ms
40,012 KB |
testcase_21 | AC | 122 ms
41,356 KB |
testcase_22 | AC | 123 ms
41,312 KB |
testcase_23 | AC | 124 ms
40,404 KB |
testcase_24 | AC | 123 ms
41,580 KB |
testcase_25 | AC | 123 ms
41,232 KB |
testcase_26 | AC | 112 ms
40,308 KB |
testcase_27 | AC | 122 ms
41,604 KB |
testcase_28 | AC | 124 ms
41,444 KB |
testcase_29 | AC | 120 ms
41,420 KB |
testcase_30 | AC | 121 ms
41,384 KB |
testcase_31 | AC | 127 ms
41,624 KB |
ソースコード
import java.io.*; import java.util.*; public class Main_yukicoder622 { private static Scanner sc; private static Printer pr; private static void solve() { double[] a = new double[3]; double[] b = new double[3]; double[] c = new double[3]; double[] d = new double[3]; for (int i = 0; i < 3; i++) { a[i] = sc.nextInt(); } for (int i = 0; i < 3; i++) { b[i] = sc.nextInt(); } for (int i = 0; i < 3; i++) { c[i] = sc.nextInt(); } for (int i = 0; i < 3; i++) { d[i] = sc.nextInt(); } double[] ab = v(a, b); double[] ac = v(a, c); double[] no = cross(ab, ac); double tmp = no[0] * (d[0] - a[0]) + no[1] * (d[1] - a[1]) + no[2] * (d[2] - a[2]); double tmp2 = (double)no[0] * no[0] + (double)no[1] * no[1] + (double)no[2] * no[2]; double t = -tmp / tmp2; double[] p = {d[0] + t * no[0], d[1] + t * no[1], d[2] + t * no[2]}; double[] bc = v(b, c); double[] ca = v(c, a); double[] ap = v(a, p); double[] bp = v(b, p); double[] cp = v(c, p); double[] bccp = cross(bc, cp); double[] abbp = cross(ab, bp); double[] caap = cross(ca, ap); boolean flag = true; if (dot(bccp, abbp) < 0) { flag = false; } if (dot(abbp, caap) < 0) { flag = false; } if (dot(caap, bccp) < 0) { flag = false; } if (flag) { pr.println("YES"); } else { pr.println("NO"); } // pr.printf("%f %f %f\n", no[0], no[1], no[2]); // pr.printf("%f %f %f\n", p[0], p[1], p[2]); } private static double dot(double[] a, double[] b) { return a[0] * b[0] + a[1] * b[1] + a[2] * b[2]; } private static double[] v(double[] a, double[] b) { double[] ret = {b[0] - a[0], b[1] - a[1], b[2] - a[2]}; return ret; } private static double[] cross(double[] a, double[] b) { double[] ret = {a[1] * b[2] - a[2] * b[1], a[2] * b[0] - a[0] * b[2], a[0] * b[1] - a[1] * b[0]}; return ret; } // --------------------------------------------------- public static void main(String[] args) { sc = new Scanner(System.in); pr = new Printer(System.out); solve(); pr.close(); sc.close(); } private static class Printer extends PrintWriter { Printer(PrintStream out) { super(out); } } }