import java.util.Scanner; public class Main{ public static void main(String[] args){ Scanner scan=new Scanner(System.in); while(scan.hasNext()){ int a=scan.nextInt(); int b=scan.nextInt(); int c=scan.nextInt(); double d=(a+b+c)/2.0; double s=Math.sqrt(d*(d-a)*(d-b)*(d-c)); System.out.println(String.format("%.2f",s)); } } } |
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