Node.js)백준 2089번: -2진수

https://www.acmicpc.net/problem/2089

2089번: -2진수

const fs = require('fs');
let N = +fs.readFileSync("./dev/stdin").toString().trim();
const answer = [];


if(N==0){
  console.log(0);
} 
else{
  while(N!=0){
    if(N%-2==0){
    answer.unshift(0);
      N/=-2; 
    }else{
      answer.unshift(1);
      N = (N-1)/-2;
    }
  }
}

console.log(answer.join(''))