Submission #3976698

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Source Code Expand

import java.io.OutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.PrintWriter;
import java.util.Arrays;
import java.util.StringTokenizer;
import java.io.IOException;
import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.InputStream;

/**
 * Built using CHelper plug-in
 * Actual solution is at the top
 */

public class Main {
    public static void main(String[] args) {
        InputStream    inputStream    = System.in;
        OutputStream outputStream = System.out;
        InputReader    in                      = new InputReader(inputStream);
        PrintWriter      out                    = new PrintWriter(outputStream);
        Task                 solver               = new Task();
        solver.solve(1, in, out);
        out.close();
    }

    static class Task {
        public void solve(int testNumber, InputReader in, PrintWriter out) {
        	double x1 = in.nextInt();
        	double y1 = in.nextInt();
        	double x2 = in.nextInt();
        	double y2 = in.nextInt();
        	double x3 = in.nextInt();
        	double y3 = in.nextInt();
        	x1 = 0 - x1;
        	y1 = 0 - y1;
        	x2 += x1;
        	y2 += y1;
        	x3 += x1;
        	y3 += y1;
        	out.println(Math.abs(x2*y3 - x3*y2) / 2);
        }
    }

    static class InputReader {
        public BufferedReader reader;
        public StringTokenizer tokenizer;

        public InputReader(InputStream stream) {
            reader = new BufferedReader(new InputStreamReader(stream), 32768);
            tokenizer = null;
        }

        public String next() {
            while (tokenizer == null || !tokenizer.hasMoreTokens()) {
                try {
                    tokenizer = new StringTokenizer(reader.readLine());
                } catch (IOException e) {
                    throw new RuntimeException(e);
                }
            }
            return tokenizer.nextToken();
        }

        public int nextInt() {
            return Integer.parseInt(next());
        }

    }
}

Submission Info

Judge Result