输入参数是一个正整数，输出该整数所对应的二进制数对应的字符串。

[java]代码库

import java.util.Scanner;
import java.lang.String;

public class Main {

	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		int N = input.nextInt();
		String S = "";
		
		while(N > 1)
		{
			S = N%2 + S ;
			N = N/2;
		}
		
		S = N + S;
			
		System.out.print(S);
		
		input.close();
	}

}