NYOJ题目112指数运算

 1 import java.io.BufferedReader;
 2 import java.io.IOException;
 3 import java.io.InputStreamReader;
 4 import java.math.BigInteger;
 5 
 6 public class Main {
 7 
 8     public static void main(String[] args) throws IOException {
 9         
10         BufferedReader reader=new BufferedReader(new InputStreamReader(System.in));
11         
12         boolean first=true;
13         while(first || reader.ready()){
14             first=false;
15             String ss[]=reader.readLine().split(" ");
16             BigInteger ans=pow(Integer.parseInt(ss[0]),Integer.parseInt(ss[1]));
17             System.out.println(ans.toString());
18         }
19     }
20     
21     public static BigInteger pow(int a,int b){
22         BigInteger res=BigInteger.ONE;
23         for(int i=0;i<b;i++) res=res.multiply(BigInteger.valueOf(a));
24         return res;
25     }
26     
27 }