题解 | #2的n次方计算#
2的n次方计算
http://www.nowcoder.com/practice/35a1e8b18658411388bc1672439de1d9
import java.util.Scanner;
public class Main {
public static void main(String[]args){
Scanner in = new Scanner(System.in);
int input = in.nextInt();
int count=1;
for(int i=0;i<input;i++)
{
count=2*count;
}
System.out.println(count);
}
}