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import java.util.*;
import java.math.*;
public class Main{
public static void main(String args[]){
BigDecimal b;
int n;
Scanner cin = new Scanner(System.in);
while(cin.hasNextBigDecimal())
{
b = cin.nextBigDecimal();
n = cin.nextInt();
String s = fun(b,n).stripTrailingZeros().toPlainString();
if(s.charAt(0) == ‘0‘) {
s = s.substring(1);
}
System.out.println(s);
}
}
public static BigDecimal fun(BigDecimal b,int n){
return b.pow(n);
}
}
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原文地址:http://www.cnblogs.com/gavinsp/p/4563045.html