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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.             int len1 = s1.length(), len2 = s2.length();
  34.             for (int i=0; i<len1 || i<len2; i++) {
  35.                 if ( s1.charAt(i % len1) > s2.charAt(i % len2) )
  36.                     return 1;
  37.                 else if ( s1.charAt(i % len1) < s2.charAt(i % len2) )
  38.                     return -1;
  39.             }
  40.             return 0;
  41.         });
  42.  
  43.         //build maximum and minimum
  44.         for(String s : integers){
  45.             int n = Integer.parseInt(s);
  46.             min.append(n);
  47.             max.insert(0, n);
  48.         }
  49.  
  50.         System.out.println(min + " " + max);
  51.     }
  52. }
Success #stdin #stdout 0.15s 4386816KB
comments ()
stdin
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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/B6Lqo7
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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