View Code of Problem 24

    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 area=Math.sqrt((d*(d-a)*(d-b)*(d-c)));
            System.out.println(String.format("%.2f",area));
        }
    	
        }
      
    }

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