package com.company;
import java.util.Scanner;
public class Main {
    public static void main(String[] args) {
        double k[];
        double FirstSide;
        double SecondSide;
        double ThirdSide;
        double SemiPerimeter;
        double Min;
        int n;
        int Number;
        int i;
        Number = 0;
        Min = 0;
        System.out.printf("Subject: n triangles are given by the lengths of their sides. Find a triangle with the smallest radius of an inscribed circle. \n");
        do {
            System.out.printf("Enter the number of triangles: \n");
            n = input();
        } while (n < 1);
        k = new double[n];
        for (i = 0; i < k.length; i++) {
            do {
                System.out.printf("Enter the first side: \n");
                FirstSide = inputD();
                System.out.printf("Enter the second side \n");
                SecondSide = inputD();
                System.out.printf("Enter the third side: \n");
                ThirdSide = inputD();
                if ( ((FirstSide + SecondSide) < ThirdSide) ||
                        ((FirstSide + ThirdSide) < SecondSide) ||
                        ((SecondSide + ThirdSide) < FirstSide)) {

                    System.out.printf("Such a triangle does not exist! \n");

                }
            } while ( ((FirstSide + SecondSide) < ThirdSide) ||
                      ((FirstSide + ThirdSide) < SecondSide) ||
                      ((SecondSide + ThirdSide) < FirstSide) );
            SemiPerimeter = (FirstSide + SecondSide + ThirdSide) / 2;
            k[i] = Math.sqrt(((SemiPerimeter - FirstSide) * (SemiPerimeter - SecondSide) * (SemiPerimeter - ThirdSide)) /
                    SemiPerimeter);
            System.out.printf("%f \n", k[i]);
            Min = k[0];

            if (k[i] < Min) {
                Min = k[i];
                Number = i;
            }


            System.out.printf("SemiPerimeter: %.2f \n", SemiPerimeter);
        }
        System.out.printf("Number of the triangle with the smallest radius of the inscribed circle: %d\n", Number + 1);
        System.out.printf("The radius of the circle inscribed in it: %f \n", Min);
    }
    public static int input() {
        Scanner scan = new Scanner(System.in);
        int value = 1;
        try {
            value = scan.nextInt();
            return value;
        } catch (Throwable error) {
            System.out.println("Error! Enter the number: ");
            return input();
        }
    }
    public static double inputD() {
        Scanner scan = new Scanner(System.in);
        double value = 1;
        try {
            value = scan.nextDouble();
            return value;
        } catch (Throwable error) {
            System.out.println("Error! Enter the number: ");
            return inputD();
        }
    }
}