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  1. /*
  2.  * To change this license header, choose License Headers in Project Properties.
  3.  * To change this template file, choose Tools | Templates
  4.  * and open the template in the editor.
  5.  */
  6. package aer515;
  7.  
  8. import java.util.Scanner;
  9.  
  10. /**
  11.  *
  12.  * @author Usuario
  13.  */
  14. public class AER515 {
  15.  
  16.     Scanner in;
  17.  
  18.     /**
  19.      * @param args the command line arguments
  20.      */
  21.     public boolean caso() {
  22.         int casos = Integer.parseInt(in.nextLine());
  23.  
  24.         if (casos == 0) {
  25.             return false;
  26.         }
  27.         if(casos == 1){
  28.             System.out.println(casos);
  29.         }else if (casos % 2 == 0) {
  30.             System.out.println(casos - 1);
  31.         } else {
  32.             int resultado;
  33.             resultado = casos - (casos * 1) / 2;
  34.  
  35.             System.out.println(resultado);
  36.         }
  37.  
  38.         return true;
  39.     }
  40.  
  41.     public void run() {
  42.         in = new Scanner(System.in);
  43.  
  44.         while (caso()) {
  45.  
  46.         }
  47.     }
  48.  
  49.     public static void main(String[] args) {
  50.         new AER515().run();
  51.         // TODO code application logic here
  52.     }
  53.  
  54. }
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