LV. 2 :: 숫자의 표현

https://school.programmers.co.kr/learn/courses/30/lessons/12924

프로그래머스

 

function solution(n) 
{
    var answer = 0;
    var arr = [];
    
    for (i=1; i<=n; i++)
    {
        if (n%i==0) arr.push(i);
    }
    
    for (i=0; i<arr.length; i++)
    {
        if (arr[i]%2!==0) answer ++;
    }
    
    return answer;
}

---

function solution(n) {
    let count = 0;
    
    for (let k = 1; k * (k - 1) / 2 < n; k++) {
        if ((n - (k * (k - 1)) / 2) % k === 0) {
            count++;
        }
    }
    
    return count;
}