题解 | #二进制数#

#include <iostream>
#include <bitset>
#include <string>
#define MAXLEN 200
using namespace std;
int main(){
    for(unsigned int x; cin >> x;){
        bitset<MAXLEN> b = x;
        string res = b.to_string();
        res.erase(0,res.find_first_not_of('0'));
        cout << res <<endl;
    }
    return 0;
}