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  1. import java.io.PrintWriter;
  2. import java.util.Scanner;
  3.  
  4. public class Main {
  5.     public void run(){
  6.         byte[] a, b;
  7.         Scanner in = new Scanner(System.in);
  8.         PrintWriter out = new PrintWriter(System.out);
  9.  
  10.         a = (in.nextLine() + 'A').getBytes();
  11.         b = (in.nextLine() + 'A').getBytes();
  12.  
  13.         int fullLength = a.length + b.length - 2, ai = 0, bi = 0;
  14.  
  15.         for(int i = 0; i < fullLength; i++){
  16.             if(a[ai] > b[bi]) {
  17.                 out.print((char) b[bi]);
  18.                 bi++;
  19.             }
  20.             else if(a[ai] < b[bi]) {
  21.                 out.print((char) a[ai]);
  22.                 ai++;
  23.             }
  24.             else {
  25.                 if(a[ai + 1] > b[bi + 1]) {
  26.                     out.print((char) b[bi]);
  27.                     bi++;
  28.                 }
  29.                 else if(a[ai + 1] < b[bi + 1]) {
  30.                     out.print((char) a[ai]);
  31.                     ai++;
  32.                 }
  33.                 else {
  34.                     if(a[a.length - 2] >= b[b.length - 2]) {
  35.                         out.print((char) b[bi]);
  36.                         bi++;
  37.                     }
  38.                     else {
  39.                         out.print((char) a[ai]);
  40.                         ai++;
  41.                     }
  42.                 }
  43.             }
  44.         }
  45.  
  46.         out.flush();
  47.         out.close();
  48.     }
  49.  
  50.     public static void main(String[] args) {
  51.         new Main().run();
  52.     }
  53. }
Success #stdin #stdout 0.19s 61040KB
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https://ideone.com/7v7lkf
language:
Java (HotSpot 12)
created:
3 days ago
visibility:
public

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