2进制

[java]代码库

package com.cn;

import java.util.Scanner;

public class T1{
	public static void main(String[] args) {
		 Scanner x=new Scanner(System.in);
		 int n=x.nextInt();
		 String str="";
		 while (n!=0) {
			str=n%2+str;
			n=n/2;
			
		}
		 System.out.println(str);
	}
}