欧拉工程第55题：Lychrel numbers

package projecteuler51to60;

import java.math.BigInteger;
import java.util.Iterator;
import java.util.Set;
import java.util.TreeSet;

class level55{    
    void solve0(){
        int Max=10000;
        int count=0;
        for(int i=0;i<Max;i++){
            if(isLychrel(i))
                count++;
        }
        System.out.println(count);
    }
    private boolean isLychrel(int n){
        BigInteger temp = BigInteger.valueOf(n);
        for(int i=0;i<49;i++){
            BigInteger revtemp = new BigInteger(reverse(temp.toString())); 
            temp = temp.add(revtemp);
            if(isPalindrome(temp.toString())){
                return false;
            }
            
        }
        return true;
    }
     String reverse(String s) {
        return new StringBuilder(s).reverse().toString();
    }
     public  boolean isPalindrome(String s) {
            return s.equals(reverse(s));
    }
     public  boolean isPalindrome(int x) {
            return isPalindrome(Integer.toString(x));
    }
}
public class Problem55 {


    public static void main(String[] args){
        long begin= System.currentTimeMillis();
        new level55().solve0();
        long end = System.currentTimeMillis();
        long Time = end - begin;
        System.out.println("Time:"+Time/1000+"s"+Time%1000+"ms");
    }

}