> import java.util.*;
> import java.math.*;
> public class Main {
> 	public static void main(String args[])
> 	{
> 		Scanner in=new Scanner(System.in);
> 		while(in.hasNext())
> 		{
> 			double a=cin.nextDouble();
> 			int b=cin.nextInt();
> 			BigDecimal num = new BigDecimal(a);
> 			BigDecimal result=num.pow(b);
> 			if(result.compareTo(result.setScale(0,BigDecimal.ROUND_FLOOR)) == 0) {
> 				   System.out.println(result.setScale(0, BigDecimal.ROUND_FLOOR));
> 			}
> 			else if(result.compareTo(BigDecimal.ONE) == -1){
> 				String s = result.toPlainString();
> 				System.out.println(s.replaceFirst("^0*", ""));
> 			}
> 			else {
> 				System.out.println(result.toPlainString());
> 			}
> 		}
> 	}
> }

• Re:这样写感觉完全没问题啊，但是就是不让过。。。。。 (88) zhongxiangwei 2014-12-06 13:09:01