3031777_wa.java

来自「北大大牛代码 1240道题的原代码 超级权威」· Java 代码 · 共 28 行

import java.util.*;

public class Main
{

	public static void main(String[] args)
	{
		Scanner cin = new Scanner (System.in);
		String nn;
		int n;

		while (cin.hasNext())
		{
			nn = cin.next();
			n = (nn.charAt(0)-'0')*10+(nn.charAt(1)-'0');
			n *= (int)Math.pow(10, (nn.charAt(3) - '0'));
			nn = Integer.toBinaryString(n);
			nn = nn.substring(1) + nn.charAt(0);
			n = 0;
			for (int i = 0; i < nn.length(); i++)
			{
				n *= 2;
				n += nn.charAt(i) - '0';
			}
			System.out.println(n);
		}
	}
}