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  1. import java.util.*;
  2.  
  3. /**
  4.  * To take input integers and
  5.  * output largest and smallest integer possible
  6.  * by concatenating them
  7.  *
  8.  * Created on 5/9/2017.
  9.  */
  10.  
  11. class concatInts {
  12.  
  13.     public static void main (String args[]) {
  14.         Scanner in = new Scanner(System.in);
  15.  
  16.         //because 3 challenge inputs
  17.         for (int i = 0; i < 3; i++) {
  18.             String input = in.nextLine();
  19.             logic(input);
  20.         }
  21.     }
  22.     static void logic (String input) {
  23.         StringBuilder max = new StringBuilder(""),
  24.             min = new StringBuilder("");
  25.  
  26.         //split to list
  27.         ArrayList<String> integers = new ArrayList<>(
  28.             Arrays.asList( input.split(" ") )
  29.         );
  30.  
  31.         //sorts the numbers
  32.         integers.sort( (String s1, String s2) -> {
  33.                 for (int i=0; i < s1.length(); i++) {
  34.                     for (int j = 0; j < s2.length(); j++) {
  35.                         if ( s1.charAt(i) > s2.charAt(j) )
  36.                             return 1;
  37.                         else if ( s1.charAt(i) < s2.charAt(j) )
  38.                             return -1;
  39.                     }
  40.                 }
  41.                 return 0;
  42.             });
  43.  
  44.         //build maximum and minimum
  45.         for(String s : integers){
  46.             int n = Integer.parseInt(s);
  47.             min.append(n);
  48.             max.insert(0, n);
  49.         }
  50.  
  51.         System.out.println(min + " " + max);
  52.     }
  53. }
Success #stdin #stdout 0.16s 4386816KB
comments ()
stdin
copy 
79 82 34 83 69
420 34 19 71 341
17 32 91 7 46
stdout
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3469798283 8382796934
193413442071 714203434119
173246791 917463217
https://ideone.com/NcvC9t
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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