题解 | #2的N次方#
2的N次方
https://www.nowcoder.com/practice/e9a4919b8848451d9aff81e3cdd133b1
import java.util.Scanner;
import java.math.BigInteger;
// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
public static void main(String[] args) {
Scanner in = new Scanner(System.in);
// 注意 hasNext 和 hasNextLine 的区别
int n = in.nextInt();
if(n>=512 &&n<=1024){
BigInteger result = BigInteger.valueOf(2).pow(n);
System.out.println(result.toString());
}else{
System.out.println(0);
}
}
}
