Submission #1519200

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Source Code Expand

import java.util.Scanner;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int xa = sc.nextInt();
        int ya = sc.nextInt();
        int xb = sc.nextInt();
        int yb = sc.nextInt();
        int xc = sc.nextInt();
        int yc = sc.nextInt();
        
        if (xa > 0) {
            xb -= xa;
            xc -= xa;
        } else if (xa < 0) {
            xb += Math.abs(xa);
            xc += Math.abs(xa);
        }
        
        if (ya > 0) {
            yb -= ya;
            yc -= ya;
        } else if (ya < 0) {
            yb += Math.abs(ya);
            yc += Math.abs(ya);
        }
        
        double answer = Math.abs(xb * yc - yb * xc) /2;
        System.out.printf("%.1f", answer);
    }
}

Submission Info

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