UVA+POJ中大数实现的题目，持续更新（JAVA实现）

import java.util.Arrays;
import java.util.Scanner;
import java.math.*;

public class Main
{
    public static void main(String[] args)
    {
        Scanner cin = new Scanner(System.in);
        BigInteger a,b;
        String s;
        while(cin.hasNext())
        {
            a=cin.nextBigInteger();
            s=cin.next();
            b=cin.nextBigInteger();
            if(s.equals("/"))
            {
                System.out.println(a.divide(b));
            }
            else if(s.equals("%"))
            {
                System.out.println(a.mod(b));
            }
        }
        cin.close();
    }

}

import java.util.Arrays;
import java.util.Scanner;
import java.math.*;

public class Main
{
    public static void main(String[] args)
    {
        Scanner cin = new Scanner(System.in);
        BigDecimal a;
        int n;
        while(cin.hasNext())
        {
            a=cin.nextBigDecimal();
            n=cin.nextInt();
            BigDecimal cnt=a.pow(n).stripTrailingZeros();
            System.out.println( cnt.toPlainString().replaceAll("^0", "") ); 
        }
        cin.close();
    }

}