题解 | #二进制数#

#include <bits/stdc++.h>
#define MAX 50
using namespace std;


void d2b(unsigned int n){
	int data[MAX],len = 0;
	
	while(n){
		data[len++] = n % 2;
		n /= 2;
	}
	for(len--; len >= 0;len--){
		cout<<data[len];
	}
	cout<<endl;
}

int main(){
	unsigned int n;
	while(cin>>n){
		d2b(n);		
	}

}