模拟_大数JAVA(HDU_1063)

while(sc.hasNext()) {} 多案例

stripTrailingZeros() 去除后导零

toPlainString() 变换到 String 中，防止以科学计数输出

import java.math.*;
import java.util.*;

public class Main
{
    public static void main(String[] args)
    {
        BigDecimal a;
        int n;
        String p;
        Scanner sc = new Scanner(System.in);
        
        while(sc.hasNext())
        {
            a = sc.nextBigDecimal();
            n = sc.nextInt();
            a = a.pow(n);
            a = a.stripTrailingZeros();
            p = a.toPlainString();
            if(p.charAt(0) == '0')
                System.out.println(p.substring(1));
            else
                System.out.println(p);
        }
    }
}