Submission #4338910

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Source Code Expand

package main

import (
	"bufio"
	"fmt"
	"os"
	"strconv"
)

var sc = bufio.NewScanner(os.Stdin)

func main() {
	sc.Split(bufio.ScanWords)

	xa := nextInt()
	xb := nextInt()
	ya := nextInt()
	yb := nextInt()
	za := nextInt()
	zb := nextInt()

	result := float64((ya - xa) * (zb - xb) - (yb - xb) * (za - xa)) / 2.0000000000

	if result < 0.0  {
		result = result * -1.0
	}

	fmt.Printf("%.10f", result)
}

func nextInt() int {
	sc.Scan()
	i, e := strconv.Atoi(sc.Text())
	if e != nil {
		panic(e)
	}

	return i
}

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