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  1. import java.math.BigInteger;
  2. import java.util.Scanner;
  3.  
  4.  class Main {
  5.     public static BigInteger reverse(BigInteger num){
  6.         return new BigInteger(new StringBuilder(num+"").reverse().toString());
  7.     }
  8.     public static void main(String[] args) {
  9.         System.out.println("Дай мне число, больше ста!");
  10.         Scanner in = new Scanner(System.in);
  11.         BigInteger bi = in.nextBigInteger();
  12.         byte cont = 0;
  13.         do {
  14.             BigInteger rev = reverse (bi);
  15.             BigInteger sum  = bi.add(rev);
  16.             int x = sum.toString().length();
  17.             if (x % 2 == 0){
  18.                 int half = x / 2;
  19.                 double result = Math.pow(10,half);
  20.                 int i = (int) result;
  21.                 //bi = sum % half;
  22.                 BigInteger bi2 = new BigInteger(Integer.toString(i));
  23.                 bi = sum.divide(bi2);
  24.                 System.out.println(bi);
  25.             } else {
  26.  
  27.             }
  28.             cont ++;
  29.         } while (cont <1);
  30.  
  31.  
  32.     }
  33. }
Success #stdin #stdout 0.07s 2184192KB
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Дай мне число, больше ста!
60
https://ideone.com/ZvCKhS
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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