Submission #111451


Source Code Expand

import java.util.*;

class Main
{
	public static void main (String[] args) throws java.lang.Exception
	{
		Scanner sc = new Scanner(System.in);
		
		double[][] x = new double[3][3];
		double area, a1, a2, ang, ba, bc, x1, y1;
		
		 x[0][0] = sc.nextDouble();
		 x[0][1] = sc.nextDouble();
		 x[1][0] = sc.nextDouble();
		 x[1][1] = sc.nextDouble();
		 x[2][0] = sc.nextDouble();
		 x[2][1] = sc.nextDouble();
		

		/*A : (x[0][0], x[0][1]) 
	      B : (x[1][0], x[1][1]) 
	      C : (x[2][0], x[2][1])*/
	      
		x1   = x[0][0] - x[1][0];
		y1   = x[0][1] - x[1][1];
		a1   = Math.atan2(y1, x1);
		ba   = Math.sqrt(x1 * x1 + y1 * y1);

		x1   = x[2][0] - x[1][0];
		y1   = x[2][1] - x[1][1];
		a2   = Math.atan2(y1, x1);
		bc   = Math.sqrt(x1 * x1 + y1 * y1);

		ang  = Math.abs(add(a1, -a2));
		area = 0.5 * ba * bc * Math.sin(ang);

		
		System.out.println(area+0.0001);
	}

	static double add(double a, double b)
	{
		double x;

		x = a + b;
		if (x > Math.PI)
			x -= 2.0 * Math.PI;
		else if (x < -Math.PI)
			x += 2.0 * Math.PI;

		return x;
	}
}

Submission Info

Submission Time
Task C - 直訴
User R2D2S2
Language Java (OpenJDK 1.7.0)
Score 100
Code Size 1105 Byte
Status AC
Exec Time 536 ms
Memory 23556 KB

Judge Result

Set Name all
Score / Max Score 100 / 100
Status
AC × 72
Set Name Test Cases
all 00_sample_01.txt, 00_sample_02.txt, 00_sample_03.txt, test_01.txt, test_02.txt, test_03.txt, test_04.txt, test_05.txt, test_06.txt, test_07.txt, test_08.txt, test_09.txt, test_10.txt, test_11.txt, test_12.txt, test_13.txt, test_14.txt, test_15.txt, test_16.txt, test_17.txt, test_18.txt, test_19.txt, test_20.txt, test_21.txt, test_22.txt, test_23.txt, test_24.txt, test_25.txt, test_26.txt, test_27.txt, test_28.txt, test_29.txt, test_30.txt, test_31.txt, test_32.txt, test_33.txt, test_34.txt, test_35.txt, test_36.txt, test_37.txt, test_38.txt, test_39.txt, test_40.txt, test_41.txt, test_42.txt, test_43.txt, test_44.txt, test_45.txt, test_46.txt, test_47.txt, test_48.txt, test_49.txt, test_50.txt, test_51.txt, test_52.txt, test_53.txt, test_54.txt, test_55.txt, test_56.txt, test_57.txt, test_58.txt, test_59.txt, test_60.txt, test_61.txt, test_62.txt, test_63.txt, test_64.txt, test_65.txt, test_66.txt, test_67.txt, test_68.txt, test_69.txt
Case Name Status Exec Time Memory
00_sample_01.txt AC 506 ms 23484 KB
00_sample_02.txt AC 482 ms 23468 KB
00_sample_03.txt AC 485 ms 23348 KB
test_01.txt AC 486 ms 23464 KB
test_02.txt AC 492 ms 23464 KB
test_03.txt AC 489 ms 23304 KB
test_04.txt AC 491 ms 23476 KB
test_05.txt AC 489 ms 23448 KB
test_06.txt AC 484 ms 23472 KB
test_07.txt AC 514 ms 23480 KB
test_08.txt AC 482 ms 23440 KB
test_09.txt AC 484 ms 23480 KB
test_10.txt AC 482 ms 23468 KB
test_11.txt AC 483 ms 23476 KB
test_12.txt AC 484 ms 23436 KB
test_13.txt AC 483 ms 23476 KB
test_14.txt AC 486 ms 23472 KB
test_15.txt AC 492 ms 23520 KB
test_16.txt AC 483 ms 23392 KB
test_17.txt AC 495 ms 23472 KB
test_18.txt AC 487 ms 23476 KB
test_19.txt AC 487 ms 23472 KB
test_20.txt AC 490 ms 23476 KB
test_21.txt AC 490 ms 23476 KB
test_22.txt AC 484 ms 23352 KB
test_23.txt AC 481 ms 23348 KB
test_24.txt AC 494 ms 23444 KB
test_25.txt AC 484 ms 23476 KB
test_26.txt AC 486 ms 23468 KB
test_27.txt AC 488 ms 23476 KB
test_28.txt AC 487 ms 23476 KB
test_29.txt AC 491 ms 23468 KB
test_30.txt AC 536 ms 23472 KB
test_31.txt AC 494 ms 23556 KB
test_32.txt AC 490 ms 23340 KB
test_33.txt AC 477 ms 23468 KB
test_34.txt AC 480 ms 23340 KB
test_35.txt AC 482 ms 23476 KB
test_36.txt AC 482 ms 23472 KB
test_37.txt AC 485 ms 23476 KB
test_38.txt AC 489 ms 23472 KB
test_39.txt AC 481 ms 23480 KB
test_40.txt AC 472 ms 23476 KB
test_41.txt AC 474 ms 23476 KB
test_42.txt AC 487 ms 23480 KB
test_43.txt AC 494 ms 23352 KB
test_44.txt AC 485 ms 23476 KB
test_45.txt AC 492 ms 23476 KB
test_46.txt AC 494 ms 23340 KB
test_47.txt AC 475 ms 23472 KB
test_48.txt AC 475 ms 23468 KB
test_49.txt AC 484 ms 23468 KB
test_50.txt AC 508 ms 23476 KB
test_51.txt AC 490 ms 23468 KB
test_52.txt AC 480 ms 23476 KB
test_53.txt AC 481 ms 23468 KB
test_54.txt AC 478 ms 23472 KB
test_55.txt AC 481 ms 23476 KB
test_56.txt AC 485 ms 23448 KB
test_57.txt AC 485 ms 23472 KB
test_58.txt AC 483 ms 23468 KB
test_59.txt AC 487 ms 23348 KB
test_60.txt AC 483 ms 23476 KB
test_61.txt AC 502 ms 23472 KB
test_62.txt AC 482 ms 23476 KB
test_63.txt AC 492 ms 23348 KB
test_64.txt AC 498 ms 23476 KB
test_65.txt AC 493 ms 23464 KB
test_66.txt AC 486 ms 23476 KB
test_67.txt AC 486 ms 23476 KB
test_68.txt AC 489 ms 23348 KB
test_69.txt AC 485 ms 23472 KB