[java] 세변의 길이를 입력받아 직각삼각형인지 판단하기

import java.io.IOException;
import java.util.*;

public class Main {
   public static void main(String[] args) throws IOException {

      Scanner sc = new Scanner(System.in);
      
          int max =0;
          int[] num = new int[3];
          int idx =0 ;
          double sum=0;
      
          while(true){ //escape condition  0,0,0
      
          num[0]=sc.nextInt();
          num[1]=sc.nextInt();
          num[2]=sc.nextInt();

          if(num[0]==0&&num[1]==0&&num[2]==0){
         break;
          }
      
          for(int i=0; i<3; i++){
          if(max<num[i]){

               max=num[i];
                           idx=i;
                  }

          }

          if(idx==0){  //max num is first number
              
                sum=Math.pow(num[1],2)+Math.pow(num[2],2);
//               System.out.println(sum);
         
                 if(Math.pow(num[0],2)==sum){
                 System.out.println("right");
                 }
                 else{
                 System.out.println("wrong");

                 }

          }
      
          if(idx==1){  //max num is first number
              
                sum=Math.pow(num[0],2)+Math.pow(num[2],2);
//               System.out.println(sum);
         
                 if(Math.pow(num[1],2)==sum){
                 System.out.println("right");
                 }
                 else{
                 System.out.println("wrong");

                 }

          }

 
          if(idx==2){  //max num is first number
              
                sum=Math.pow(num[0],2)+Math.pow(num[1],2);
//               System.out.println(sum);
         
                 if(Math.pow(num[2],2)==sum){
                 System.out.println("right");
                 }
                 else{
                 System.out.println("wrong");

                 }

          }

          max=0;
          sum=0;


          }


//        System.out.println(max+" "+idx);

          
      
   } // end of Main
                 
} // end of class Main